5 ton 6x6 military vehicle, with lots of play in the clutch. not quite the same as your sporty little nissan. In this, the syncros are small, and it just won't go into gear without a little help. around town, you don't always have time or room to rev match. on steep climbs with a load on it can be up to 6.5 ton, you absolutely need to blip on the downshift to avoid coming to a dead stop.
@@MarcDufresneosorusrex No so much quicker, but easier. in the case of down shifting, it allows for shifting into a lower gear for engine braking. for shifting up, it helps when you have work sychros, or when you want to reduce wear on them.
If you’ve ever driven an old manual gearbox with worn synchronizers you will appreciate how easy the stick just slots into gear with minimal effort you double clutch the gearbox will love it
This has synchros too, but just small ones. When heading downhill, it definitely helps when attempting to downshift to engine break. What I'm interested to know is - analytics tell me most people google search "how to double clutch" land on this short, and seem to already know how...
@@Mattlawton-ft6ew i have two vehicles with the same gearbox and engine, one is a 4x4, that works fine. The one in the video is a 6x6, and the 3rd axle is driven by a separate pto direct from the gearbox and not the transfer case. This extra load makes floating through gears without the clutch nearly impossible. You are welcome to drop by sometime and try.
@@syedgilani7108 This has synchros, but small ones, also weighs 5 tons and is 6x6. synchros only do so much off road, and rev matching really only works on flat paved roads. 1982 build
@@kalel8736 come jump in my old 5ton 6x6 land rover with worn synchros and a 4 speed box sometime. Yeah on the flat and level roads you can slip it into gear without a clutch. I do it in the 4x4 landy all the time. Example: th-cam.com/users/shorts4tAtXPOvqOc?feature=share
@@TheAussieRepairGuyI single clutch up and double clutch down in my Jeep TJ lol I really don’t care; it’s comfortable and saves my synchros just a little bit.
@@Hank_Amarillo Yep! Just like in a semi. I like it because it gets everything flywheel to synchro spinning at a closer speed and in theory saves the synchros and the clutch a little bit. Sometimes I will float out of gear, then only clutch to go in; if you do it right you’re just fine. You can float completely, but my 5 speed doesn’t really need it. E: Think of it as 2 stage shifting; 1. Into Neutral, 2. Into gear. I do this going up the gears too, but I don’t double clutch.
Each time this trucker depressed the clutch pedal the driver also engaged the clutch brake while in motion. The clutch brake is at the bottom of the travel in the pedal. The clutch brake should only be engaged when stopped. Clutch pedal should engage clutch much sooner than the bottom of pedal travel or it needs adjustment. Clutch brakes do exhaust.
This has no engine brakes, this is a 5 ton, 6x6 ex-military land rover. Essentially a modified 110 defender. And yes at the time of filming the clutch did need adjustment.
I having been driving for 2 years now with a 13 speed freightliner and tend to use a mixer of double and floating (depends on load and grade) i double clutch more often then not because it just much more fluid for me and the way i was taught so 100% comfotable habit. I know my engine and can just shift when i know its time, I have been getting better floating the gears and trying to use it more but out of habit double clutch.( guys who ran the truck for 6 years prior to me was very rough on it and i think the syncro is damaged because other truck i float so easily), this is my 99% of the time work truck. I float when im on main roads or high ways, flat areas, and when it just feels right to float. Its funny because the people who say we should float are mad mean to double clutchers lol like their just horrific drivers for double clutching verse floating. Makes me kinda feel like am i not doing it enough or a good enough driver cause i have an easier time with double clutching... but hey i haul 60000lbs into the hills and back all the time into tight moutain roads full of pallets of concrete block and material off loaded into wonkey ass construction sites. 😅
Yeah I can float 4th in this, as it's a 4 speed box, but synchros in 2nd and 3rd get a lot more work, and at 5 tons, this needs a lot of room for rev matching - so I end up double clutching a lot. Technically this is 8 speeds, and I have a two speed transfer case.
Push to come out of gear, lift and push while in neutral, back into next gear, then release. It means input and output shaft are both spinning at the same/similar speed, making gear change faster and smoother
Matching the rpm to ratio. Truck drivers who have driven a long time can change them mostly without the clutch. Down shifting I would put my left foot on the brake, so I could receive the eng with my right foot.😊
what's funny is that the people who have never driven a manual gearbox on a heavy vehicle are the ones who talk the most, it's not a car, the efforts on the parts are not the same, you have to help the gearbox a little bit, as I like to say. good job , As long the vehicle is moving and you don't change parts every miles it's ok !
If you can drive a big rig, you can drive anything else. Double clutching is the correct way to drive a big rig… even if the old timers float the gears (and then bitch about the gear box going out but that clutch is still good!)
Been driving the cheapest car for 17 years, Dacia Logan, diesel engine mostly in the city. It has over 300000 km and hadn't had major issues. I never double clutched. Good maintanence and knowing what car you drive, so no forcong it while the motor is cold are the main things of having any car for 20 years and a lot of km/miles
@@TovarishDima Nah you just lift the foot a touch, slip it into neutral and apply brakes - or for the less skilled, turn off the key, slip into neutral and start it up again.
it reduced wear on the gearbox, throwout bearing and synchros, but yes it does increase clutch wear. in my case, clutch is much easier to replace than anything in the gearbox.
I don't do sneakers, and I have MS which is heat sensitive - so the cooler the better. that it's a 6x6 military vehicle, clutch takes 30kg to depress. Perspective dude - other ways of life exist outside your narrow field of view.
@TheAussieRepairGuy This wasn't hate, bro. I wear goofy looking shit sometimes. It's playful jest. I understand that you get a ton of idiots replying with ignorant shit because they don't know how to drive older vehicles, but chill, brother, I was just poking you for boots n' shorts. I get the same for wearing my socks high with shorts on. It's all good. I liked the video fyi
First time seeing this! I guess this is to move through gears. In my manual, I just rev higher, hold clutch to the floor, then jump from say 4th to 6th no problem. Is that what’s going on in the video?
This is a 5 ton 6x6 ex military land rover, with small synchros snd a 4 speed box. Its a big jump between gears. You can float between gears, but the clutch is way easier to swap than a gearbox throwout bearing in this. Sometimes you need to match speeds with input/output shaft for smooth shifting when offroad as rev matching is not an option.
Who knew all it took was five seconds on TH-cam to learn double clutch😂 I should tell my brother his yelling and frantic need for me to immediately understand it after he’s repeatedly yelled the same thing at me ten times😅😂
In this 5 ton 6x6, it can be a problem to get it into gear without double clutching, as well there is a documented history of gearsticks snapping off. This greatly reduces that chance. In a standard car, the benefits are mostly speed and ease of gear change.
Most vehicles you fon't need to. This is a 5 ton 6x6 military vehicle with only 4 gears. There's a big difference between gear ratios, and it needs a little help if you want to change quickly
When you lift your foot, the clutch plate touches the pressure plate, spinning it up, when you press the clutch again, both the input and output shaft are spinning at the same speed. Most useful when trying to downshift on a downhill descent, or trying to engine break.
If you have a gearbox like mine with small and/or worn synchros, double clutching helps the input and output shafts match speeds, meaning they will mesh more easily with less/no help from the sychro ring. Means less gearbox wear, faster shifting, and in some cases allows you to change gears where you otherwise could not. The flywheel in this military vehicle weighs 20kg, it needs some help.
@@donke666 nah I keep on top of that. Foot powder, there are socks under there that are hidden by the boots, and I'm out in cold weather, so sweating less of an issue.
Never understood what the point of this was, with the clutch disengaged, the transmission is now at a different speed of the engine. To upshift, clutch in and wait for engine to drop to the right rom. To downshift, clutch in and rev match. Why do you need to fo anything else?
sometimes you don't have the luxury of time, or dead flat roads. in a 5 ton 6x6 , on rough roads, sometimes you gotta downshift in a hurry, or do the same on a steep incline to avoid loosing your momentum. In cases like this where it's an ancient 4 speed, the synchros are tiny and really only there in spirit. the LT95 boxes in land rovers are well known for snapped gearsticks, and they take a lot of force, even when correctly rev matched. Double clutching on the flat means the gearstick just floats through. But most people don't drive old military gear and have gearboxes that haven't made sacrifices in order to deal with the torque generated by this engine. th-cam.com/users/shortsw-WnvUpkxLI
@@TheAussieRepairGuy sorry I guess I'm inexperienced and genuinely just don't understand. I've been driving a 5 speed Pathfinder for a while like how I described earlier and been just fine with moderate slopes at highway speeds, but I realize that's nothing like what you drive. Are you essentially double clutching because you can't wait for the engine to drop rpm?
@@wertbe1718 No in some cases it simply won't shift. in most cases it will shift much more smoothly with a double clutch - but it's big and slow and they flywheel is huge, sometimes you just loose too much momentum and miss the window to shift. Other times I might be crossing an intersection, and don't have the luxury of a 45 second shift time, when I'm about to get t-boned by speeders on the intersecting street. Rev matching in these low geared, 4 speed off-road crawlers just simply isn't enough sometimes.
@@wertbe1718 the 4x4 version, which I also drive, is less than half the weight, and have the same engine, gearbox and transfer case, can shift without the clutch: th-cam.com/users/shorts4tAtXPOvqOc
What is the purpose of double clutching? What is it doing? Been probably 25 to 30 years sence i drove stick. Now that im out of the big city, i miss it.
Allows input and output shafts to match speeds, reducing the need for synchros to spin up the gears. In big boxes like this eith only 4 speeds, there's a big jump between gears. Done right, you don't even feel the stick move between gears. Offroad, it can be essential when hill climbing or descending extreme terrain. See the pinned comment for more
@@flashburn93_gaming95 yeah not like I wake up to this comment every morning. See the pinned comment. It's a 5 ton 6x6 military land rover with 4 gears, and the world isn't perfect. But yes i do exactly that in the 4x4 variant: th-cam.com/users/shorts4tAtXPOvqOc?feature=share
Any way guys let me teach you how to drive a manual, Step 1. Learn how to drive a automatic car first. Step 2. How to start a manual car, push brake and clutch all the way in and start car then put car in neutral. Step 3. How to start rolling in 1st gear, push clutch all the way in, put car in 1st, take your foot off the clutch slowly till you feel the car start vibrating, then start tapping the gas and you will be rolling after you start rolling take your foot off the clutch slowly. Step 4. How to stop the car, press clutch all the way in put car in nuteral, take your foot off the clutch, and apply brake as needed to syop like you will do in an automatic. Step 5. How to change gears, let's say you in 1st you will have to press clutch all the way in then switch the gear to 2nd then slowley take your foot of the clutch to engage the gear, thats what you do to all gears. Step 6. How to not roll back, pull hand brake up, and hold it all the way up and hold the lock button in so it does not lock in, put car in 1st and take clutch slowly till you feel the car vibrate then strt tapping the gas and when you feel the car start to pull put the hand brake all the way down but dont leave it, when you make sure you are actually rolling foreward then put the hand brake all the way down and leave it and thats how you dont roll. Tip: Learn how to not roll back or at least reduce the roll back in that way. Step 7. Another way to not roll back, if you are good in driving a manual, then this shouldnt be hard, put car in 1st and find the biting point put the car into a deeper section of the biting point and very fast take your foot off the brake and give the car gas then quickly but considerably taking your foot off the clutch. Note: all the steps i gave are the basics, how well they work with you is based on you, how fast you change the gear is based on you not me or my tips
@@adriannyqvist964 with the downshift, I'm slowing down, so I release the clutch slowly for a smooth deceleration, using the engine to slow the vehicle instead of the brakes. Basically i clutch in, take out of gear, clutch out and rev, then quickly clutch in, and select a lower gear. This spins the clutch plate up, so that it more closely matches the speed of the gearbox input.
Some auto gearboxes have two clutches, so that they can engage the next gear per-emtively during races - not really something I'm gonna try in my 5 ton, 4 speed 6x6 military land rover with a top speed of 85km/h
@TheAussieRepairGuy I've driven loaded tractor trailers at 80k lbs while rev matching just fine both up and downshifting every day/year. I only use the clutch for 1st/reverse lol I'm not hating I'm just saying what I do.
@@dallasmanthie156 still, you can come demonstrate for me. I've rev matched before, but this 6x6 land rover has an odd drivetrain, where the 3rd axle is driven by an entirely separate driveshaft on it's own pto on the gearbox, not transfer case. The slack in the gears means that trying to rev match just isn't quite enough. The synchros in these gearboxes are really only there in spirit. Needs that little bit of extra help. It's also nearly 40 years old.
Come and try it sometime, this is a 5 ton, 6x6 military vehicle. Bet you it doest go the way you expect. Also, any less, and it won't release. The clutch takes around 30kg to release, and takes up at the last 1/3 of the pedal travel.
clutch all in or all out, not half way. Only time you do it in increments is takeoff, otherwise you will burn it out. I'll haev to do a longer video showing how a clutch actually works. However, the idea is to get the input and putput shaft spinning at the same speed, so the synchro ring doesn't have to work so hard to match speeds. If you have ever played with lego technic, try meshing two gears while they are moving at different speeds.
@@TheAussieRepairGuy that'd be great cause now I'm lost again ~ you're foot does not look to be all out on the double, and the caption says 'lift btw gears'...maybe I'm not matching the revs properly to be so quick as your feet (06' swift)
@@psychnstatstutor when double clutching up in gears (eg: 2nd to 3rd) lift up and down quickly, so that the clutch plate touches briefly, and then change into gears without delay. when changing down gears (eg: 4th to 3rd) do the same, but rev a little while the clutch is out. every vehicle has a different feel and speed to do this at. clutch wear plays a big part, in my vehicle the clutch takes 30kg to depress - as it's a 5 ton military vehicle, and things have to happen slowly. in a "normal" car all of this happens much more quickly. smaller cars have better synchros usually, and if you hare having issues changing up gears, it might simply be that you aren't accelerating enough before changing up. basically - just send it... as you get more confident with a manual you will tend to be a little more aggressive with acceleration, and you will find things will change more smoothly. if it's a second hand vehicle - change or get the gearbox oil changed, sometimes adding a little teflon additive line nulon smooth-shift can help.
@@TheAussieRepairGuy Thanks so much for the detailed feedback; I'll practice being quicker with my clutch foot, at the mo to go all out I need to do it slow (2006 swift). Merry Christmas!
You'll save your sincros but your thrust washers will take a beating with double clutching. And believe me, even with single clutch operation, thrust washers will go bad way before the sincros do.
This has syncros, but in a 5 ton 6x6 military vehicle, i'm not always on the highway. 96% of people that end up on this searched for "how to double clutch" - i agree why are you here?
@@dirtydann272 these are actually my new ones, about 6 months old. I'd been walking around in dirty dusty areas that day. The vehicle is a 6x6, 5 ton military ambulance. It's always dirty
@@TheAussieRepairGuy from my little time behind the wheel of two non synchro trucks, the clutches are monsters though double clutching just works on a non synchro so I entirely get it. Can’t beat the dealing of the synchro 6 speed international I drove though, all you need to do is gently let out the clutch with no accelerator and even with the heavy clutch weight a little heel toe blip when going down to third, or if you feel extra spicy second, at a light, works like a charm.
@@HEXAN-SC yeah you can float these, but they are a 4 speed truck box. I have a 4x4 with same drivetrain and engine. The synchros are small. I have a short going public tomorrow showing that.
@TheAussieRepairGuy I live off road,and I have driven a few unamogs never needed to double clutch. But I did blow the owners mind when I showed him how to flote the gears in it. A real operator doesn't even need a clutch pedal unless it's it 1st at a dead stop or reverse...
@@TheAussieRepairGuy Thanks for the reply! I know the general moves, but it's still tricky. She's an old girl and needs a new or rebuilt transmission. I have been trying to do it single clutch style, maybe that's the problem. I'll definitely head out tomorrow and see if I can get the hang of it though.
@@connorbaz5980 the general idea of double clutching is to get the flywheel spinning at the same speed as the input shaft. In the case of down shifting you need to spin it up a bit faster as the lower gear will want to be spinning faster.
@@TheAussieRepairGuy ahh, I understand what you're saying. In theory. I double clutch all the time going up, and sometimes going down - but never tried to rev match on a double clutch downshift. Definitely give it a try tomorrow. Got a few good low-traveled roads around me. I'm trying to learn all the good old ways of driving. Sick of autos TBH. I'm a Truck Driver (with an automatic restriction, ew) and I'm getting back OTR soon here. Looking to improve my shifting and get that license restriction removed so I can sign on with a company just down the way from me. They drive all old Pete's with 13 - 18 SPD Eaton's, so I got a lot of catching up to do. I got recommended to them by a mutual acquaintance, but I'm not quite there yet.
@@connorbaz5980 You'd like the video I filmed that in, a 5 ton, 6x6 military land rover, with a 4 speed box and two speed transfer case. 4cyl 4l diesel. 4.7:1 diffs, not fast but will climb a brick wall.
@@worldgate989 this isn't a heavy rig, it's a 6x6 ex military land rover, and sure you can float them on the straight and flat. This is a how-to, not a you-should. The things people read into this are very telling.
@@worldgate989 well I've had to answer this many times as this short is on track for half a million views, do I made a follow up: th-cam.com/users/shortsw-WnvUpkxLI?si=KUkDwIiTu83s-ADF
@@TheAussieRepairGuy I actually sort of asked in a tongue-in-cheek way, not to be a troll but more like, how you ask if 'this system plays crysis' way.
@@worldgate989 yeah i get that, I've had many that do not. The 4 speed box has sone huge jumps between ratios, and thd synchros in these even from new are only there in spirit, when getting through the short trafgic lights and in town, you don't always have thd luxury of a runup, or time. They need a littke help. I have a 4x4 with same engine and gearbox, I barely use the clutch: th-cam.com/users/shorts4tAtXPOvqOc?feature=share
@@gerryger889Always push the clutch to the floor. Be lazy about the double clutch if anything as long as it’s 1 gear between, and the rest of your technique is gentle on components, modern car’s synchros most likely last until the transmission needs a rebuild. If you don’t come all the way off the clutch you get some of the benefits of double clutching, but at a cost.
this is a 5 ton 6x6 ex military vehicle with 5 speed box. sometimes I can change gears without the clutch altogether, but most of the time, the world wont wait for the 5-6 seconds it takes for this to change gears at the "right" speeds. to add to that, off road - which is where this lives most of the time, the world isn't perfect and flat - sometimes input and output just aren't going to match no matter how good the synchros are.
@@frilled-lawn i have a 4x4 with same engine and drivetrain, but only 2.2 ton. I don't bother with clutch half the time, my wife calls it witchcraft: th-cam.com/users/shorts4tAtXPOvqOc?feature=share
Firstly, this is a how-to, not a you-should video. this is a 5 ton 6x6 military vehicle with 4 speeds, and a heavy flywheel, and small synchros. double clutching basically helps synchronize input and output so that it shifts more smoothly and faster. in a lumbering old thing like this, it helps you get round town faster, or get it into a lower gear for downhill descents.
Unfortunately not fun (or always possible) in an off road dirt track in a 5 ton 6x6. But yes I do that in the 4x4 version of the same vehicle: th-cam.com/users/shorts4tAtXPOvqOc
pfff...u hit the gas to the floor...and let the clutch out..and hit the clutch half way and shift and let it out as fast as possible...and in the winter...u replace the clutch urself...like a man...
You don't need to double clutch for upshifting, only for down shifting and the only reason you do it is to get the transmission to spin faster so you can match rpms with the engine. Most full size trucks you don't even have to use the clutch. Mack trucks operators manual even states that once the truck is in motion the clutch is not necessary. You people need to learn how to drive. 😂😂😂😂
Come drive sometime, not always flat straight roads here. This is also a 6x6 ex military 5 ton vehicle. th-cam.com/users/shortsw-WnvUpkxLI?feature=share
What in the heck are you even doing? Just shift normal. You don’t want to rev match, you downshift to slowdown or speed up. Rev matching would make any of those obsolete
I wake up every morning to people that have a problem with this short or don't understand what;s going on. At some point you run out of energy repeating yourself.
In this case, a clutch is easier to change than the gearbox. Also acvording to metrics there's about a 97% chance that you landed here after searching google for "how to double clutch" Welcome to come visit and try to rev match this 5 ton critter sometime.
@@southern_merican Yeah I can imagine that was the case. for reference the clutch in this is heavy, about 30kg (66lb) but I'm also 6 foot 6 - so you aren't wrong there. this is an old military vehicle, floating through and rev matching don't work very well due to the odd arrangement of PTO shafts, and the fact that it's a 6x6, using a 4x4 drivetrain. really not much to speak of synchro wise.
@AnameSomeonesDadSurname everyone's an expert on everything. However, on this video I have access to all the metrics. And you aren't the one I was replying to.
This response should cover most of your complaints:
th-cam.com/users/shortsw-WnvUpkxLI?si=DmEPEwnXvfzfKsrh
@@LucidDreamer54321 the fact that you are so butthurt over this damages your credibility.
@@Im-2fst4u how do you get into low gear in the first place?
ive never thought about double clutching the downshifts, but now that i think about it i gotta start
It's mostly useful in somethibg like the video, a 5 ton 6x6 military vehicle. Hill climbs are where you need it so you don't loose momentum.
5 ton 6x6 military vehicle, with lots of play in the clutch.
not quite the same as your sporty little nissan.
In this, the syncros are small, and it just won't go into gear without a little help.
around town, you don't always have time or room to rev match.
on steep climbs with a load on it can be up to 6.5 ton, you absolutely need to blip on the downshift to avoid coming to a dead stop.
doulbe clutching is for moving through gears quicker?
@@MarcDufresneosorusrex No so much quicker, but easier. in the case of down shifting, it allows for shifting into a lower gear for engine braking.
for shifting up, it helps when you have work sychros, or when you want to reduce wear on them.
@@TheAussieRepairGuy ah nice, enjoy them prawns !! : ) ty from Canada
If you’ve ever driven an old manual gearbox with worn synchronizers you will appreciate how easy the stick just slots into gear with minimal effort you double clutch the gearbox will love it
This is a 1989 6x6 ex mil landcrover weighing 5 tons with a 4 speed bix, when synchros arevnew, they still dont shift well.
@@TheAussieRepairGuyold crap 😁👍
@@Mattlawton-ft6ew the new crap just can't get the places this can though.
At least I can start this when the washer bottle is empty
@@TheAussieRepairGuy good point new Land rover just dog shit 🤭👍
Felt that one 👌🏻👌🏻@@TheAussieRepairGuy
Double clutching goes back years and years in big rigs
Not every car needs to be double clutched newers cars have synchros which help match the speeds of input and output shafts.
This has synchros too, but just small ones.
When heading downhill, it definitely helps when attempting to downshift to engine break.
What I'm interested to know is - analytics tell me most people google search "how to double clutch" land on this short, and seem to already know how...
Wast of time just bang it in 😁👍
@@Mattlawton-ft6ew i have two vehicles with the same gearbox and engine, one is a 4x4, that works fine. The one in the video is a 6x6, and the 3rd axle is driven by a separate pto direct from the gearbox and not the transfer case. This extra load makes floating through gears without the clutch nearly impossible.
You are welcome to drop by sometime and try.
most manual cars in the early 90s or maybe even sooner had syncros, right?
@@syedgilani7108 This has synchros, but small ones, also weighs 5 tons and is 6x6.
synchros only do so much off road, and rev matching really only works on flat paved roads.
1982 build
Good to see someone double clutching like they're s'posed to, instead of granny shifting.
This vehicle weighs 5 tons, and the synchros are there in spirit only, there really isn't any other way.
@@TheAussieRepairGuy lol, I was just misquoting Fast and Furious 😂
@@Kj16V Yeah I never could get through those movies. Kept rage quitting at the inaccuracies lol
@@TheAussieRepairGuy 1 and 2 were fun! Ignore the rest 😂
@@Kj16VDon’t forget Tokyo Drift 😢
That’s too deep bro that’s what she said 😂
That double clutch downshift is impressive. Well done.
@@katieneubaum4284 i appreciate the compliment. Most come here to insult
@@TheAussieRepairGuy Yeah fam that’s the internet 😂 Keep doing what you do my guy, save the sticks.
Or.. just Rev match 🙌
yea fr
Not double clutching in a Mack truck, I just rev the engine to the desired rpm and let off the gas and shift without touching the clutch
@@kalel8736 come jump in my old 5ton 6x6 land rover with worn synchros and a 4 speed box sometime. Yeah on the flat and level roads you can slip it into gear without a clutch. I do it in the 4x4 landy all the time.
Example: th-cam.com/users/shorts4tAtXPOvqOc?feature=share
That's pretty much any truck
Thats why we have synchros and dual mass clutches. This is more for old trucks.
This is a 5 ton, 6x6 military vehicle ftom 1982 with a 4 speed box. Nobody reads comments apparently
@@TheAussieRepairGuyI single clutch up and double clutch down in my Jeep TJ lol
I really don’t care; it’s comfortable and saves my synchros just a little bit.
@@b226tj so if down shifting from 4th to 3rd gear, you clutch out of 4th into neutral, then clutch again from neutral into 3rd?
@@Hank_Amarillo Yep!
Just like in a semi. I like it because it gets everything flywheel to synchro spinning at a closer speed and in theory saves the synchros and the clutch a little bit.
Sometimes I will float out of gear, then only clutch to go in; if you do it right you’re just fine.
You can float completely, but my 5 speed doesn’t really need it.
E: Think of it as 2 stage shifting; 1. Into Neutral, 2. Into gear. I do this going up the gears too, but I don’t double clutch.
@@b226tj but wouldnt that put extra wear on the throw out bearing? being your doubling the amount of times the clutch is engaged
I have to double clutch third gear on my 1979 Triumph Spitfire because the synchro is toast. I haven’t quite mastered the down shifts though
Smooth 💯
Each time this trucker depressed the clutch pedal the driver also engaged the clutch brake while in motion. The clutch brake is at the bottom of the travel in the pedal. The clutch brake should only be engaged when stopped. Clutch pedal should engage clutch much sooner than the bottom of pedal travel or it needs adjustment. Clutch brakes do exhaust.
This has no engine brakes, this is a 5 ton, 6x6 ex-military land rover. Essentially a modified 110 defender. And yes at the time of filming the clutch did need adjustment.
I having been driving for 2 years now with a 13 speed freightliner and tend to use a mixer of double and floating (depends on load and grade) i double clutch more often then not because it just much more fluid for me and the way i was taught so 100% comfotable habit. I know my engine and can just shift when i know its time, I have been getting better floating the gears and trying to use it more but out of habit double clutch.( guys who ran the truck for 6 years prior to me was very rough on it and i think the syncro is damaged because other truck i float so easily), this is my 99% of the time work truck. I float when im on main roads or high ways, flat areas, and when it just feels right to float. Its funny because the people who say we should float are mad mean to double clutchers lol like their just horrific drivers for double clutching verse floating. Makes me kinda feel like am i not doing it enough or a good enough driver cause i have an easier time with double clutching... but hey i haul 60000lbs into the hills and back all the time into tight moutain roads full of pallets of concrete block and material off loaded into wonkey ass construction sites. 😅
Yeah I can float 4th in this, as it's a 4 speed box, but synchros in 2nd and 3rd get a lot more work, and at 5 tons, this needs a lot of room for rev matching - so I end up double clutching a lot.
Technically this is 8 speeds, and I have a two speed transfer case.
Now you need to do a full length video explaining why for the younger crew.
Yes that's also on my filming schedule too.
The younger crew wouldn't be able to drive stick. It's a dying art form.
Good God man, fix that squeaky clutch.
@@liamcooper5202 Did the clutch a little while back, but after this short was recorded:
th-cam.com/video/a-aVHqF06zA/w-d-xo.html
@@liamcooper5202 20 y/o and I drive a 6 speed. My children will know the art as well. Together we keep it alive.
@@kylecastleberry605 very good. Long live the art of stick
Thank you for this bro this video was exactly what I needed
Happy to help, given how well this has gone, i might do a long form
So when double clutching, do you push the pedal to come out of the gear you’re in then release and push again to grab the next gear?
Push to come out of gear, lift and push while in neutral, back into next gear, then release.
It means input and output shaft are both spinning at the same/similar speed, making gear change faster and smoother
Matching the rpm to ratio. Truck drivers who have driven a long time can change them mostly without the clutch. Down shifting I would put my left foot on the brake, so I could receive the eng with my right foot.😊
what's funny is that the people who have never driven a manual gearbox on a heavy vehicle are the ones who talk the most, it's not a car, the efforts on the parts are not the same, you have to help the gearbox a little bit, as I like to say.
good job , As long the vehicle is moving and you don't change parts every miles it's ok !
If you can drive a big rig, you can drive anything else.
Double clutching is the correct way to drive a big rig… even if the old timers float the gears (and then bitch about the gear box going out but that clutch is still good!)
@@L0VTX_H8CA this is a 6x6 military land rover.
Floating doesn't hurt the gear box. Unless your doing it wrong.
Been driving the cheapest car for 17 years, Dacia Logan, diesel engine mostly in the city. It has over 300000 km and hadn't had major issues. I never double clutched. Good maintanence and knowing what car you drive, so no forcong it while the motor is cold are the main things of having any car for 20 years and a lot of km/miles
This is a 5 ton, 6x6 military vehicle with a 4 speed truck gearbox
Why is everyone so triggered by this?
Remember the time my clutch went out, so I had to no clutch. It was quite fascinating to learn
In the right conditions, clutch isn't even necessary - example:
th-cam.com/users/shorts4tAtXPOvqOc
Just rev match and you are good to go. Pray there are no traffic or lights…
@@TovarishDima Nah you just lift the foot a touch, slip it into neutral and apply brakes
- or for the less skilled, turn off the key, slip into neutral and start it up again.
It ain't the same but in truck sim i do this, especially if im in an old mack. It matters with the force feedback of a wheel
I only do this as the weight and age of the vehicle calls for it.
If you don’t double clutch, Torrettos going to get mad. 😠
That reference is lost on me unfortunately
@@TheAussieRepairGuy the first fast and the furious movie where Brian loses the first race.
@@imonaroll9502 ahh I never watched those movies, bit much creative licence used for my taste
@@TheAussieRepairGuy they are a meme heaven.
Double clutch just puts more where and tear in it
it reduced wear on the gearbox, throwout bearing and synchros, but yes it does increase clutch wear. in my case, clutch is much easier to replace than anything in the gearbox.
I’ve always single clutched I’ve never thought about double clutching
You probably have good synchros, and a lightweight small vehicle.
The one in the video is a 5 ton 6x6 military land rover.
Why not just rev matching in the first clutch engsgement?
Because the world isn't perfectly flat.
Sometimes I slip it in and out of gear without the clutch when it is.
th-cam.com/users/shortsw-WnvUpkxLI
“Granny Shifting not Double-Clutching like you should.”
-Dom Torreto
@@TheAwsomeSawse yeah I've never seen the movie
Them boots with shorts, bro 😂
I don't do sneakers, and I have MS which is heat sensitive - so the cooler the better.
that it's a 6x6 military vehicle, clutch takes 30kg to depress.
Perspective dude - other ways of life exist outside your narrow field of view.
Hater
This is the type of comment that an empty head provides.
@TheAussieRepairGuy This wasn't hate, bro. I wear goofy looking shit sometimes. It's playful jest. I understand that you get a ton of idiots replying with ignorant shit because they don't know how to drive older vehicles, but chill, brother, I was just poking you for boots n' shorts. I get the same for wearing my socks high with shorts on. It's all good. I liked the video fyi
First time seeing this! I guess this is to move through gears. In my manual, I just rev higher, hold clutch to the floor, then jump from say 4th to 6th no problem. Is that what’s going on in the video?
This is a 5 ton 6x6 ex military land rover, with small synchros snd a 4 speed box. Its a big jump between gears. You can float between gears, but the clutch is way easier to swap than a gearbox throwout bearing in this. Sometimes you need to match speeds with input/output shaft for smooth shifting when offroad as rev matching is not an option.
Who knew all it took was five seconds on TH-cam to learn double clutch😂 I should tell my brother his yelling and frantic need for me to immediately understand it after he’s repeatedly yelled the same thing at me ten times😅😂
Takes a bit of learning the right feel and sound for each vehicle. This is a 5 ton 6x6 with only 4 gears, its a big leap between gears and a slow box.
Double clutching gives it more wear and tear
is the auto content moderation giving you a hard time to day? clutch wear yes, gearbox wear no. clutches are easier to replace
Benefits over rev matching (in a car)?
Great video btw, short and straight to the point, nice angle too
In this 5 ton 6x6, it can be a problem to get it into gear without double clutching, as well there is a documented history of gearsticks snapping off. This greatly reduces that chance.
In a standard car, the benefits are mostly speed and ease of gear change.
Without showing the shifter, this will only confuse people.
Shifter is in the background, look more carefully. Right hand drive in Australia.
What's the main porpuse of double clutching.. does it work in any vehicle?? I'am just curious
Most vehicles you fon't need to. This is a 5 ton 6x6 military vehicle with only 4 gears. There's a big difference between gear ratios, and it needs a little help if you want to change quickly
@@TheAussieRepairGuy I see got it thank you... I really appreciate you reply... Blessings
Is a double clutch downshift gonna speed it up or slow it down?
double clutching on the downshift helps to get it into gear when you wish to engine brake.
@@TheAussieRepairGuy so its for semis?
@@insertnamehereofficial this is a 5 ton, 6x6, 4 speed military vehicle, with a truck (semi) gearbox.
@@TheAussieRepairGuy oh, that's freaking sick
I need some help here: Can’t I just keep my foot on the clutch when blipping the throttle? What does double clutching do different?
When you lift your foot, the clutch plate touches the pressure plate, spinning it up, when you press the clutch again, both the input and output shaft are spinning at the same speed.
Most useful when trying to downshift on a downhill descent, or trying to engine break.
Correct.... 😎
can i ask what's the difference between single and double clutch when up-shifting?
If you have a gearbox like mine with small and/or worn synchros, double clutching helps the input and output shafts match speeds, meaning they will mesh more easily with less/no help from the sychro ring. Means less gearbox wear, faster shifting, and in some cases allows you to change gears where you otherwise could not. The flywheel in this military vehicle weighs 20kg, it needs some help.
I can smell the shoes from here 😅
@@donke666 nah I keep on top of that. Foot powder, there are socks under there that are hidden by the boots, and I'm out in cold weather, so sweating less of an issue.
someone could ask how your day was and you’ll reply with “ 6x6 military 5 ton with 4 speed gearbox” 🤣😭😭
First one to read the comments lol.
but yes my mornings were getting like that.
Never understood what the point of this was, with the clutch disengaged, the transmission is now at a different speed of the engine. To upshift, clutch in and wait for engine to drop to the right rom. To downshift, clutch in and rev match. Why do you need to fo anything else?
sometimes you don't have the luxury of time, or dead flat roads. in a 5 ton 6x6 , on rough roads, sometimes you gotta downshift in a hurry, or do the same on a steep incline to avoid loosing your momentum.
In cases like this where it's an ancient 4 speed, the synchros are tiny and really only there in spirit.
the LT95 boxes in land rovers are well known for snapped gearsticks, and they take a lot of force, even when correctly rev matched. Double clutching on the flat means the gearstick just floats through.
But most people don't drive old military gear and have gearboxes that haven't made sacrifices in order to deal with the torque generated by this engine.
th-cam.com/users/shortsw-WnvUpkxLI
however --- if you have a read through the comments, this has been said many many times already. and this is a question I keep having to answer daily.
@@TheAussieRepairGuy sorry I guess I'm inexperienced and genuinely just don't understand. I've been driving a 5 speed Pathfinder for a while like how I described earlier and been just fine with moderate slopes at highway speeds, but I realize that's nothing like what you drive.
Are you essentially double clutching because you can't wait for the engine to drop rpm?
@@wertbe1718 No in some cases it simply won't shift. in most cases it will shift much more smoothly with a double clutch - but it's big and slow and they flywheel is huge, sometimes you just loose too much momentum and miss the window to shift.
Other times I might be crossing an intersection, and don't have the luxury of a 45 second shift time, when I'm about to get t-boned by speeders on the intersecting street.
Rev matching in these low geared, 4 speed off-road crawlers just simply isn't enough sometimes.
@@wertbe1718 the 4x4 version, which I also drive, is less than half the weight, and have the same engine, gearbox and transfer case, can shift without the clutch:
th-cam.com/users/shorts4tAtXPOvqOc
Good thing it isn't a big truck or you wouldn't have a clutch brake left fact 💯 👌
Its a 5 ton 6x6 military vehicle.
And yes every single person in the comments is an expert.
What Is this for?
To help you get it into gear when you need to shift at less than perfect speeds.
Burn that clutch bro 😂
Easier to replace the clutch than the synchros on this...
Clutch is for pulling away. Dont need it after that
@@presidentskroob522 in the 5 ton 6x6 no, in the 4x4 yes.
th-cam.com/users/shorts4tAtXPOvqOc?feature=share
Do one for heel-and-toe braking
I value the shape of my nose lol.
What is the purpose of double clutching?
What is it doing?
Been probably 25 to 30 years sence i drove stick. Now that im out of the big city, i miss it.
Allows input and output shafts to match speeds, reducing the need for synchros to spin up the gears. In big boxes like this eith only 4 speeds, there's a big jump between gears. Done right, you don't even feel the stick move between gears. Offroad, it can be essential when hill climbing or descending extreme terrain.
See the pinned comment for more
Just float the gears lol. I have never had an issue doing it that way
@@flashburn93_gaming95 yeah not like I wake up to this comment every morning.
See the pinned comment.
It's a 5 ton 6x6 military land rover with 4 gears, and the world isn't perfect.
But yes i do exactly that in the 4x4 variant:
th-cam.com/users/shorts4tAtXPOvqOc?feature=share
when I downshift, Its clutch in, shift, dab of brakes and then clutch out. Stops from engine braking.
Whereas I'm relying on the downshift in order to engine brake.
Why double clutch on gear shift?
@@เlเ-b4o you don't drive a heavy vehicle I assume?
Any way guys let me teach you how to drive a manual,
Step 1. Learn how to drive a automatic car first.
Step 2. How to start a manual car, push brake and clutch all the way in and start car then put car in neutral.
Step 3. How to start rolling in 1st gear, push clutch all the way in, put car in 1st, take your foot off the clutch slowly till you feel the car start vibrating, then start tapping the gas and you will be rolling after you start rolling take your foot off the clutch slowly.
Step 4. How to stop the car, press clutch all the way in put car in nuteral, take your foot off the clutch, and apply brake as needed to syop like you will do in an automatic.
Step 5. How to change gears, let's say you in 1st you will have to press clutch all the way in then switch the gear to 2nd then slowley take your foot of the clutch to engage the gear, thats what you do to all gears.
Step 6. How to not roll back, pull hand brake up, and hold it all the way up and hold the lock button in so it does not lock in, put car in 1st and take clutch slowly till you feel the car vibrate then strt tapping the gas and when you feel the car start to pull put the hand brake all the way down but dont leave it, when you make sure you are actually rolling foreward then put the hand brake all the way down and leave it and thats how you dont roll.
Tip: Learn how to not roll back or at least reduce the roll back in that way.
Step 7. Another way to not roll back, if you are good in driving a manual, then this shouldnt be hard, put car in 1st and find the biting point put the car into a deeper section of the biting point and very fast take your foot off the brake and give the car gas then quickly but considerably taking your foot off the clutch.
Note: all the steps i gave are the basics, how well they work with you is based on you, how fast you change the gear is based on you not me or my tips
@@mohammadalmasalmeh6 this is a 5 ton, 6x6 military vehicle with 4 speed box. A lot of general advice is not applicable here
Rev match instead makes for faster shifting
th-cam.com/users/shorts4tAtXPOvqOc
Not in this case, and not offroad
single clutch for me and rev match downshifting no need for the extra pedal movement
yeah you are probably not driving a 4 speed, 5 ton, 6x6, 30 year old military vehicle
Does this also work with a tractor from the 80s thats a manual?
And also could you give a little more information on how to downshift like you did in the vid?
Tractors would work, but tend to be a little more direct with shifting.
@@adriannyqvist964 with the downshift, I'm slowing down, so I release the clutch slowly for a smooth deceleration, using the engine to slow the vehicle instead of the brakes.
Basically i clutch in, take out of gear, clutch out and rev, then quickly clutch in, and select a lower gear.
This spins the clutch plate up, so that it more closely matches the speed of the gearbox input.
@@TheAussieRepairGuy Thank you I will remember this next time I drive!
Not sure why I always thought there were just two clutch pedals lmao
Some auto gearboxes have two clutches, so that they can engage the next gear per-emtively during races - not really something I'm gonna try in my 5 ton, 4 speed 6x6 military land rover with a top speed of 85km/h
Granny shifting, not double clutching like you're supposed to!
@@shawnbateman79 yeah never watched that movie
Not me who just rev matches and power shifts 😅 clutch is only for 1st/reverse
Come visit me sometime, you can drive the 5 ton 6x6, when we are flying downhill trying to engine break, I'll yell at you "just rev match!".
@TheAussieRepairGuy I've driven loaded tractor trailers at 80k lbs while rev matching just fine both up and downshifting every day/year. I only use the clutch for 1st/reverse lol I'm not hating I'm just saying what I do.
@@dallasmanthie156 still, you can come demonstrate for me. I've rev matched before, but this 6x6 land rover has an odd drivetrain, where the 3rd axle is driven by an entirely separate driveshaft on it's own pto on the gearbox, not transfer case. The slack in the gears means that trying to rev match just isn't quite enough.
The synchros in these gearboxes are really only there in spirit. Needs that little bit of extra help. It's also nearly 40 years old.
Heard of doing that changing down but don’t understand why you would changing up
When engine braking, it's pretty hard to change down a gear when there's a huge speed mismatch.
I'm so confused it looks like your on the passenger side of the vehicle.
Something about the Coriolis effect I bet.
Yeah Australia is a bit like that...
You hitting that clutch way to much..... thats what floating is for😂
Come and try it sometime, this is a 5 ton, 6x6 military vehicle. Bet you it doest go the way you expect. Also, any less, and it won't release. The clutch takes around 30kg to release, and takes up at the last 1/3 of the pedal travel.
Thanks~ just got my license and first car...till now been on a pushbike, the double I've been not 'getting' and now I see why~ letting out all the way
clutch all in or all out, not half way. Only time you do it in increments is takeoff, otherwise you will burn it out.
I'll haev to do a longer video showing how a clutch actually works. However, the idea is to get the input and putput shaft spinning at the same speed, so the synchro ring doesn't have to work so hard to match speeds.
If you have ever played with lego technic, try meshing two gears while they are moving at different speeds.
@@TheAussieRepairGuy that'd be great cause now I'm lost again ~ you're foot does not look to be all out on the double, and the caption says 'lift btw gears'...maybe I'm not matching the revs properly to be so quick as your feet (06' swift)
@@psychnstatstutor when double clutching up in gears (eg: 2nd to 3rd) lift up and down quickly, so that the clutch plate touches briefly, and then change into gears without delay.
when changing down gears (eg: 4th to 3rd) do the same, but rev a little while the clutch is out.
every vehicle has a different feel and speed to do this at.
clutch wear plays a big part, in my vehicle the clutch takes 30kg to depress - as it's a 5 ton military vehicle, and things have to happen slowly.
in a "normal" car all of this happens much more quickly. smaller cars have better synchros usually, and if you hare having issues changing up gears, it might simply be that you aren't accelerating enough before changing up. basically - just send it...
as you get more confident with a manual you will tend to be a little more aggressive with acceleration, and you will find things will change more smoothly.
if it's a second hand vehicle - change or get the gearbox oil changed, sometimes adding a little teflon additive line nulon smooth-shift can help.
@@TheAussieRepairGuy Thanks so much for the detailed feedback; I'll practice being quicker with my clutch foot, at the mo to go all out I need to do it slow (2006 swift). Merry Christmas!
@@psychnstatstutor yeah a tiny little clutch plate like that will need to be done quickly. Much faster than my 30 year old 5ton military vehicle
You'll save your sincros but your thrust washers will take a beating with double clutching. And believe me, even with single clutch operation, thrust washers will go bad way before the sincros do.
@@greasyHands66 in this case, its a case of double clutch or grind gears. Its an ex mil, 5 ton, 6x6 land rover with a 4 speed box.
I go from.say 5th to.3rd all.the time I don't lift the clutch twice only once.
If you have good synchros, and your vehicle isn't a 6x6, 5 ton military land rover, tbat works fine.
Downshifting without brake? RPM 5000
@@ivanstanic1309 i don't think this engine has ever hit 5000 rpm.
Syncromesh- then why am i here
This has syncros, but in a 5 ton 6x6 military vehicle, i'm not always on the highway.
96% of people that end up on this searched for "how to double clutch" - i agree why are you here?
"Clurch in" "clutch out" in sync with gears..
Granny shifting not double clutching like you should, fast n furious 😂
Yeah never watched that movie
Your shifter is on the wrong side!
🙂
@@bartman898 not in Australia it isn't
Clutch boot gang 😎
well when it takes 30kg to depress you need some decent grip.
No I’m all for it! I wear nothing but boots. That’s a bit bite though! Good for the left calf muscles 😂
@@fredysandoval7157 Yeah these are bata industrials, my daily wear boots.
I wear out a pair annually lol.
@@TheAussieRepairGuythat’s what they’re for 🎉😂
Trust me dude, that is not how you "double clutch". You need to come to South Africa so we can teach you! 🤣
@@robinbell2263 yeah and I bet you didn't check the pinned comment
What's the point of double clutching if you can just float through gears?
Double clutching is what makes that posdible.
Come take a drive with me sometime.
Time for some boots bruh 😎
You can't see those ones?
@@TheAussieRepairGuylol what’s he talking about those boots are just starting to break in😂😂
@@dirtydann272 these are actually my new ones, about 6 months old. I'd been walking around in dirty dusty areas that day. The vehicle is a 6x6, 5 ton military ambulance. It's always dirty
I don’t much like how cumbersome double clutching feels, plus I love to heel toe when stopping in my little Capri XR2
Well this was filmed in a 5 ton, 6x6 ex-military land rover. The clutch tajes around 20kg of force to depress, heel-toe really isn't an option
@@TheAussieRepairGuy from my little time behind the wheel of two non synchro trucks, the clutches are monsters though double clutching just works on a non synchro so I entirely get it. Can’t beat the dealing of the synchro 6 speed international I drove though, all you need to do is gently let out the clutch with no accelerator and even with the heavy clutch weight a little heel toe blip when going down to third, or if you feel extra spicy second, at a light, works like a charm.
@@HEXAN-SC yeah you can float these, but they are a 4 speed truck box.
I have a 4x4 with same drivetrain and engine. The synchros are small. I have a short going public tomorrow showing that.
In cdl class now ,n i can't get out of 3rd
sounds like you have some drivetrain issues.
if your CDL is air actuated, my might have a vacuum leak somewhere.
I'm a granny clutch person 😂
Probably appropriate for your vehicle and situation.
In my 5 ton 6x6 military vehicle, it can be a long day if I try to float the gears.
Wtf double cluckes...
People that drive a 5 ton 6x6
@TheAussieRepairGuy I've driven them there was no need to double clutch. I've driven vehicles over 90 tons never once did I need to double clutch...
@@pieseasmyseas don't do much off-road then.
This has a 4 speed box and the synchros even when new are only there in spirit.
Come drive it sometime...
@TheAussieRepairGuy I live off road,and I have driven a few unamogs never needed to double clutch. But I did blow the owners mind when I showed him how to flote the gears in it. A real operator doesn't even need a clutch pedal unless it's it 1st at a dead stop or reverse...
@@pieseasmyseas i can slip it in and out of gear without a clutch on the flat, and it's not a unimog.
Old school
well the vehicle was made in the 80's, for the military...
No lift but yet he lifts off the accelerator still
No lift "clutch" - the entire topic of the video.
Still having trouble with the downshift timing...
Clutch in, gearstick to neutral, clutch out, rev, quickly clutch in, and move into lower gear.
@@TheAussieRepairGuy Thanks for the reply! I know the general moves, but it's still tricky. She's an old girl and needs a new or rebuilt transmission. I have been trying to do it single clutch style, maybe that's the problem.
I'll definitely head out tomorrow and see if I can get the hang of it though.
@@connorbaz5980 the general idea of double clutching is to get the flywheel spinning at the same speed as the input shaft. In the case of down shifting you need to spin it up a bit faster as the lower gear will want to be spinning faster.
@@TheAussieRepairGuy ahh, I understand what you're saying. In theory. I double clutch all the time going up, and sometimes going down - but never tried to rev match on a double clutch downshift.
Definitely give it a try tomorrow. Got a few good low-traveled roads around me.
I'm trying to learn all the good old ways of driving. Sick of autos TBH. I'm a Truck Driver (with an automatic restriction, ew) and I'm getting back OTR soon here.
Looking to improve my shifting and get that license restriction removed so I can sign on with a company just down the way from me.
They drive all old Pete's with 13 - 18 SPD Eaton's, so I got a lot of catching up to do. I got recommended to them by a mutual acquaintance, but I'm not quite there yet.
@@connorbaz5980 You'd like the video I filmed that in, a 5 ton, 6x6 military land rover, with a 4 speed box and two speed transfer case. 4cyl 4l diesel.
4.7:1 diffs, not fast but will climb a brick wall.
Or you can float like the rest of us.
@@worldgate989 this isn't a heavy rig, it's a 6x6 ex military land rover, and sure you can float them on the straight and flat.
This is a how-to, not a you-should.
The things people read into this are very telling.
@@TheAussieRepairGuy All i see is the interior but when i drove rigs, we floated, except in traffic where my legs got a work out. :D
@@worldgate989 well I've had to answer this many times as this short is on track for half a million views, do I made a follow up:
th-cam.com/users/shortsw-WnvUpkxLI?si=KUkDwIiTu83s-ADF
@@TheAussieRepairGuy I actually sort of asked in a tongue-in-cheek way, not to be a troll but more like, how you ask if 'this system plays crysis' way.
@@worldgate989 yeah i get that, I've had many that do not.
The 4 speed box has sone huge jumps between ratios, and thd synchros in these even from new are only there in spirit, when getting through the short trafgic lights and in town, you don't always have thd luxury of a runup, or time. They need a littke help. I have a 4x4 with same engine and gearbox, I barely use the clutch:
th-cam.com/users/shorts4tAtXPOvqOc?feature=share
Wear socks my guy...work boots + feet - socks = swampy smelly feets!
I do, this day they were short socks and long boots.
That’s way too deep on that clutch!
@@rishardcollins2695 lots of play in it, you gotta go right to the bottom or it doesn't disengage.
For those that tell me to rev match:
th-cam.com/users/shorts4tAtXPOvqOc
Nicee
Where you granny shifting?
@@filmart430 never watched that movie.
th-cam.com/users/shorts4tAtXPOvqOc?feature=share
Granny shifting, not double clutching like you should.
I thought you weren’t suppose to go to the floor with double clutching
If you don't disengage the clutch, why would you do it?
You're not
@@gerryger889Always push the clutch to the floor. Be lazy about the double clutch if anything as long as it’s 1 gear between, and the rest of your technique is gentle on components, modern car’s synchros most likely last until the transmission needs a rebuild.
If you don’t come all the way off the clutch you get some of the benefits of double clutching, but at a cost.
Why not just float gears and save your clutch
this is a 5 ton 6x6 ex military vehicle with 5 speed box. sometimes I can change gears without the clutch altogether, but most of the time, the world wont wait for the 5-6 seconds it takes for this to change gears at the "right" speeds. to add to that, off road - which is where this lives most of the time, the world isn't perfect and flat - sometimes input and output just aren't going to match no matter how good the synchros are.
@@TheAussieRepairGuy oh dang my bad I thought you had some 13 speed semi or something like that
@@frilled-lawn i have a 4x4 with same engine and drivetrain, but only 2.2 ton. I don't bother with clutch half the time, my wife calls it witchcraft:
th-cam.com/users/shorts4tAtXPOvqOc?feature=share
What are the benefits of double clutching? Someone that knows educate me. I showed myself how to drive stick, but never double clutched.
Firstly, this is a how-to, not a you-should video.
this is a 5 ton 6x6 military vehicle with 4 speeds, and a heavy flywheel, and small synchros. double clutching basically helps synchronize input and output so that it shifts more smoothly and faster.
in a lumbering old thing like this, it helps you get round town faster, or get it into a lower gear for downhill descents.
as per the pinned comment - here's a reply to the most common comments:
th-cam.com/users/shortsw-WnvUpkxLI
Absolutely and you never had your car
It's a 6x6, 5 ton military ambulance...
Incorrectly Double clutching a synchronized transmission that doesn't even need to be Double clutched in the first place 🙄
come drive it sometime and see for yourself...
this is a 5 ton, 6x6 military vehicle, with very small synchros and a 4 speed truck gearbox.
metrics also suggest that there's a 96% chance you google "how to double clutch" and arrived at my video.
It really is just that easy innit?
Just don't touch it at all.
Unfortunately not fun (or always possible) in an off road dirt track in a 5 ton 6x6.
But yes I do that in the 4x4 version of the same vehicle:
th-cam.com/users/shorts4tAtXPOvqOc
pfff...u hit the gas to the floor...and let the clutch out..and hit the clutch half way and shift and let it out as fast as possible...and in the winter...u replace the clutch urself...like a man...
I don't understand half of that...
But all I'm gonna say is clutches are easier to replace than synchros.
You don't need to double clutch for upshifting, only for down shifting and the only reason you do it is to get the transmission to spin faster so you can match rpms with the engine. Most full size trucks you don't even have to use the clutch. Mack trucks operators manual even states that once the truck is in motion the clutch is not necessary. You people need to learn how to drive. 😂😂😂😂
Come drive sometime, not always flat straight roads here.
This is also a 6x6 ex military 5 ton vehicle.
th-cam.com/users/shortsw-WnvUpkxLI?feature=share
Also, as I've said hundreds of times at this point - this is a "how to" not a "you should" video.
Also, you can do that in the 4x4 version with the same engine and gearbox:
th-cam.com/users/shorts4tAtXPOvqOc?feature=share
What in the heck are you even doing? Just shift normal. You don’t want to rev match, you downshift to slowdown or speed up. Rev matching would make any of those obsolete
I wake up every morning to people that have a problem with this short or don't understand what;s going on. At some point you run out of energy repeating yourself.
Fun fact on newer cars this is useless
This is a 5 ton 6x6 ex military vehicle with a 4 speed box
Lol. Double-clutch. Isn't that a made-up Vin Diesel line?
No, double clutching is a thing, but the movie made up lots of things though.
fun fact. double clutching just doubles the wear on parts. and your knee !!!😂
In this case, a clutch is easier to change than the gearbox.
Also acvording to metrics there's about a 97% chance that you landed here after searching google for "how to double clutch"
Welcome to come visit and try to rev match this 5 ton critter sometime.
@@TheAussieRepairGuy actually I was just searching clutch adjustment videos to confirm that I adjusted my clutch properly on my new 4 wheeler,lol
@@southern_merican Yeah I can imagine that was the case. for reference the clutch in this is heavy, about 30kg (66lb) but I'm also 6 foot 6 - so you aren't wrong there.
this is an old military vehicle, floating through and rev matching don't work very well due to the odd arrangement of PTO shafts, and the fact that it's a 6x6, using a 4x4 drivetrain.
really not much to speak of synchro wise.
@AnameSomeonesDadSurname everyone's an expert on everything.
However, on this video I have access to all the metrics. And you aren't the one I was replying to.