Its AWD, almost the same setup as a Subaru. I know you mentioned one of the other NV transfer cases has a Torsen center differential, is that your ultimate goal?
that viscous coupler will lock solid once it does. we had a 8 foot snipe and multiple guys hanging off it in automotive school even though they claim it divides the power 70/30.if you notice it will lock up on you in parking lots from turning and the difference in wheel speed front to back.anyway I daily drove an ss silverado for 9 years in the canadian snow and slop. best AWD system ever
Not a truck guy but I don't think a viscous coupler should ever actually lock up. They can transmit one hell of a lot of torque if you try to turn their two against each other fast, though. But my understanding of the things is "at some slow enough speed they will permit two shafts to be rotated independently." If it doesn't I'm guessing there must be some unwanted metal-to-metal contact of the parts inside.
not sure what the original comment was but in general awd means that the front and rear drive shaft can move independently of one another, this can be done with a diff and with or without a viscous coupler. 4wd meaning they are locked together, either permanently or with a locking center diff. a couple interesting tcases: 2001-2002 toyota 4runners came with a multimode tcase that can do rwd, awd, and 4wd. In the 80's toyota made a 4wd version of the tercel. The engine is mounted longitudinally, the transmission mounts like a rwd transmission but has a shaft that goes forward to an integral center mounted front diff that sits under the engine. There is a locking collar on the rear end of that shaft that locks into the rear output for the rear solid axle. It operates as a part time 4wd system with a fwd primary mode, it also has 6 speeds, with an extra low gear being a 4.7. diffs are geared 4.10.
I'm not really into all the nuances of gm power trains but an all wheel drive transfer case does not make an all wheel drive vehicle. My definition is if all four wheels pull at all times. Back in the 70s and early to mid 80s gm sold a lot of four wheel drives with open diffs. front and rear meaning even in four wheel drive, high or low at best you had two wheels pulling. And back then I did not see them as four wheel drives.
An AWD transfer case with a slightly under driven low range would be cool. You could run a taller gear in the axles for MPG while driving around town. Then shift it into low range for the track.
4WD-AWD..BLA BLA BLA..it doesn't exists in modern vehicles.."ABS torque vectoring is not 4WD..maybe it could be considered AWD..simply put AWD is full-time..4WD is a choice..but having either or doesn't mean you can put the power to the ground with all four tires..true real-time spin all 4 tires 4WD only exists in a few vehicles and in only low range..for instance the Dodge Ram 2500 Power Wagon..as far as I know the only true factory spin all four tires AWD vehicle is 1999-2004 Jeep Grand Cherokee equipped with the Quadra-Drive option..here is a demo of it ---> th-cam.com/video/0PmxnShlfZI/w-d-xo.html oh by the way..this is a 100% pure mechanical system..no wires or sensors or solenoids just true real spin all 4 tires AWD..
Top notch video yet again sir!! Love how you kinda joke about the naysayers but yet explain it in full detail. Watched this video with my 4 month old and he was all about it and the music helps keep his attention. We were rooting for you when putting the case back together and watching that snap ring.
You you know of a transfer case that has a 2wd or Awd options I the np 242 kind of does in the full time Selection. But I think it just had a differential in xfer case no viscous coupler Or a combo of 2 that would achieve those results
Look up family man racing or something like that and his . Ls turbo AWD 3000gt I think his was a locked case and switched to rwd by Colorado electric disconnect front axle And I've heard of guys combineing gm new process cases with the jeep 231 but 242 might be doable too I've got one in my zj haven't used the AWD much I've got a lunch box ratchet locker in the front so it don't like turning much
Gotta love internet trolls that have no bearing (no pun intended) on what you are doing. As a famous philosopher once said, "They hate us cuz they ain't us"
dude I thought my AWD subi a 95 impreza L wagon who is supposed to be AWD was for years. It drove fine. never gave me an idea that it wasn't awd. Center diff was blown to shit. Did i just fix that? sure I did. I gave it what it wanted. it wanted to be 2WD.. so I made it 2WD. bolted in a 5.3 LS and a 4L65 and a suretrack LSD and made that bitch 2WD.
I had a 2004 Tahoe with that transfer case. Actually was a beast in the snow and it was great for my wife because you know it didn't blow sideways as easily as a truck in two-wheel drive. Still did all-wheel drive donuts though. It's only the 5'3 and it had that that auto ride BS but the thing had 230,000 mi on it and it was a high output. Aluminum 5.3 not the LM for the other one... It only had like 2,000 hours on it. It was all highway I averaged sold it. It was like 65 mph average. It looks like a brand new 2000 Ford Tahoe. I ended up selling it to my cousin cuz he was in a pinch and he still drives it. It has 287,000 now I believe same original everything except for rear end. It did end up blowing a rear end. I think he was beating on it.... Dorothy never let me down
I never had a 4 wd or AWD,,, my had bunch of SWB full size Chevys though … when my oldes went off road (unintended ),,, I made rule about keeping 4-500 lbs of elevator counter weight up against the cab in the bed… AND got into flipping new take off wheels and tires so that I would always have a newish set of tires on those trucks. Thankfully no more ‘off roading’. ( and they shure rode nice). So we always had rear drive Chevys ( wife and 40 years) .. we talked a lot about what fun retirement car we would like ( in our first few years of marriage I bought n repaired a wrecked 69 impala SS 427 convertible, and family car was a 70 Monte Carlo ( this transplanted rust belt boy loves Georgia rust free cars!!) Our fav truck was a 03 that we put over 250 k miles on ( after buying used with 130)… So after I retired I bought a low mile ( just under 29,000 miles) … o3 silverado shorty 5.3 .. as third vehicle… I don’t use it much.. ( I find it difficult to put the miles on) ( a ‘problem’ that I didn’t give much thought to before buyin lol)
I'm very interested in what you're doing here because in a few years when I sell my 2018 Denali 6.2 I'm considering finding another 2001 C3 which was my favorite truck and doing a mild 500 whp LS3 in it unless the newer Colorado turbo can be made to hit 400whp easy enough. Watching!!!
My first truck was a '89 k1500 with 350 TBI nothing majorly special 5-speed manual after driving that I don't think I could ever own automatic truck. I don't understand that about the world. How pickup trucks don't come with a manual transmission anymore? I mean out of any vehicle on the road. A truck should be manual if you've ever plowed or done any work or off-roaded or Plano ripped a manual truck. You know what the hell I'm saying for work. It's better for plowing. It's better. Everybody's a big baby these days!
So that noise every single harbor freight hydro press makes upon release...yea...my ladies African grey has heard it so many times chillin on my shoulder as i build my single turbo and forged rotating assembly L33/t56/sn95 front clip and suspension swapped 1961 ford falcon, he imitates the sound so perfectly i guarantee you wouldn't be able to tell the difference. Ive also taught him how to say, "WHO FARTED?" Which makes me laugh so hard i dont even feel her punching me for teaching her incredibly expensive bird how to swear and offend everyone who comes out to the house. He says "wanna get high?" Just like towly from south park too. Hey i live in Reno, Nevada its legal here dont judge me.
People make me soo madd why don't u ask that dude if he was ever smart enough to be selected by horsepower tv to host the show TRUCKS GRRRRR PEOPLE MAKE ME FUC#×NG PIST ! just my opinion but you are a very very educated builder and I learn from your knowledge eagle eye viewer may know something I don't but I agree w u LT I've seen that baby tear off the line lemme tell u AWD is what slingshots that orange truck
Classy blurring the guys name out 0:09 so he doesn't get tag with hate comments. Haha It's AWD as it gets. If that person disagrees, then let's see their build of an AWD?
the NV149 has a viscous coupler, acting "like" a differential but is not a differential. The NV120 from the trailblazer SS has a centre torsen differential and would honestly be a better performance option. i think the front diff on the TBSS is torsen also.
@@gootch27 it won't lock solid as it's a fluid coupler, if it did lock solid, one would not have to replace the burned out coupler as was done here. The TBSS is a torsen which is developed uniquely for performance. Just like in the Nissan skylines, most rally cars and so on. The 149 is a city transfer case for urban vehicles.
So this is a 4X4 transfer case converted to AWD? can you do vise versa for an 08 AWD Sierra Denali? I want to convert to RWD i dont mind carrying the transfer case free spinning
I'd like to see someone build an engine but keep the truck like stock looking you know but find one that's like mint with like 20,000 mi on it sitting in a garage. I know it's impossible but if you could find one like that and keep it bone stock and the only thing you build up is a transmission and the motor keep it four-wheel drive regular four-wheel drive. If you want to give it a small lift I can go with that exhaust intake. You know those kind of things. Of course it's going to be a manual transmission. That's not even a question, not even a question
If anyone tells you that's not AWD they're morons, sorry. I don't care how long they've been in the game. AWD is not a completely defined system it's an ability to drive all 4 wheels on the street. Full-time, AWD on Demand it's all the same thing.
@@LawrenceTolman it's only awd if the wheels are all on the ground LOL got to love waiting for parts .. my CJ7 dropped the rear drive shaft going down main st about 20 mph . at night so no traffic . picked up the drive shaft ,, put jeep in 4wd drove home front wheel drive .. yokes had the strap clamps they bent .. also broke the strap bolts and bent a few .. they were tight 2 days before I checked .. had the tranny out 400 miles ago .. 10 days of waiting the company said they do not stock the yoke any more .. ordered another one 2 days later jeep driving .. I need to rebuild the warner t5 5 speed tranny ,, that's another story ..
As someone else said that's how Subaru does it. The viscous coupler is essentially like a small torque converter, and they are, as well, usually not rebuildable. You can get full lockup in a torque converter, a percentage of lockup, in the transfer case or at the input to the transmission. GM was savvy enough to use a viscous coupler to create their desired ratio of front-to-rear bias. This can be changed just like a lockup torque converter in a drag car. This setup is found is Mercedes , BMW, Acura, GM, Ford, every manufacturer -not only in the transfer case but the transmission. The only difference is using fluid dynamics to couple rather than mechanical/ positive lock through a gear or a chain. Physics 101. Yes, it's AWD.
The bias does not come from the viscous coupler, it comes from the planetary differential (see patent# US4677873A if you are curious!). Subaru 5MT uses an 1:1 spider differential, which is why it's 50:50. (Some!)6MT use a planetary differential more similar to the NP/NV transfer cases with a few different ratios used depending on the year/application which is why you see everything from 49:51 to 35:65 bias listed for those. This is all independent of viscous vs DCCD. In both cases, the front and rear ends are still mechanically linked. All the viscous coupling does is provide a somewhat speed sensitive restriction on how much differential action happens. One inaccurate way it's described is that it has a theoretical range of 40:60 (fully open) to 50:50 (fully locked) . But since technically a fully open center diff can be 50:50 and a fully locked center diff is ALSO 50:50, torque bias obviously doesn't tell the whole story!
Use welding pliers to spread that ring when u put the housing back on where that rubber peace goes back in and use a flathead screw driver n the speedometer to lift it up to the ring on the bearing the welding pliers dont slip and spreads wider and it pushes right up with a flathead screw driver through the speedometer
I was thinking the same thing for different reasons. I used to tow a camper with a 4L65 truck and converted it to 4L80 after the 3rd rebuild. I missed the first gear on the 4L65
Well it is all wheel drive. And it’s one of the best projects out there in TH-cam land! I primarily drag race but I do love interesting street projects! So now I have to build a street project! Thanks a lot LT see what you started😎
Lookin Good!!! Hey LT, (or anyone else) have you done any research to find out how much hp/tq that transfer case typically can handle? just wondering. Also, would like to hear your opinion on the differing 1st and 2nd gear ratios of the 4L60 vs 4L80. Finally are you going to build the roll cage for the ugly truck or farm it out, again just wondering. Can't wait till race week :)
hey thanks! I know several Silverado SS guys have reported using the NV149 with 1,000+ HP with great success. I don't plan on pushing it that far, but we'll see. I don't love that the 4l80e has a higher first gear ratio, but I chose the 4.30 axle ratios knowing it would help offset that some. sure, it won't be as quick off the line as it is with the 4l60, but I'm also hoping the nicer Circle D torque converter I have will offset that a little. On the roll cage, I may have to farm some of that out since I Don't have a tubing notcher or bender...
Please help me I have a 2003 duramax 4x4 5 speed Allison with a 263XHD transfer case and I’m trying to adapt my bw4481 transfer case from a 2003 Cadillac Escalade ext awd the front driveshaft slips in and will work for the front diff but the input and out put shaft won’t work and help would be appreciated
the Allison uses a special 29 spline larger output shaft that was never mated to a BW4481. In order to make that work, you'll need a custom input shaft for the transfer case which will probably make this project not make sense to accomplish...
I still don't understand$ eve car has 4 wheels, so 4WD must be equal AWD... and then 2WD if there's switch, or the one with the switch they call 4WD because it could be 2WD???
It has to do with when power flows to the front. A “4wd” vehicle has a button or lever that allow you to disengage power to the front. An all-wheel-drive system I s always sending power to all four wheels, plus has some type of center differential to allow easier turning
I got a 05 Sierra with a 5.3 rn I got a 227/238 cam,trunnion upgrade, .660 dual springs, and stainless intake/exhaust valves if that even makes a difference, 3200 FTI stall, tbss intake with 36lb injectors, long tube headers, and stock heads, ARP Main studs and ARP head studs it’s slow until I get to 60mph but it’s still a base tune I sent my computer off and told the guy everything so maybe that’s why but Ik I went to big on the cam but… what should I do get a larger stall or what I’ve already got 3.73 gears as well might need to throw a shot on it it’s freshly built with new all new bearings and my builder gapped the rings for me just in case I did want to put a shot on it but what would u recommend I do I don’t really want to run nitrous/boost
LT…I just found this channel. I remember LT from Powernation. Seems like a nice channel here, so I subbed up. I have to mention how impressed I was watching the video and seeing LT use hearing protection like he did. People do not realize how easy it is to damage your hearing and how easy it is to protect against it. Kudos!!
Spent a lot of time around machine rooms ( retired elevator man here) … the time I spent around those high pitch generators !!! I wish I could go back n time n wore ear protection … best to this channel . New subscriber here. I have seen some of your videos… we have owned bunch of these 99 to 2007 ( and before n beyond) Chevys . ( three daughters used em in H/S n college too)… I just maintained them ,, no racing ( though I heard stories bout the youngest) . Our most favorite was a 2003 short bed regular cab 4.8 that I bought with 130 k miles and three years old . .. sold it at 385 k miles 13 years later ( same engine replace trans with a new one at 175k) for same 8 k I paid for it.
I thought the 149 was only in the Silverado ss? And the Denali, Escalade & trailblazer ss used a different transfercase? We use the 149 in our syclone builds, but behind an L83 with a blower.
it was best known for being used in the Silverado SS, but SOME denali's and escalades used it as well in the 2001 to 2004 range. however, they also used a Borg Warner AWD case in the other denalis and escalades along the same time, and those used an open center diff which wasn't as good as the NV149
I have one of these in a GMC Savana Van. I've broken three of them with in 140000 miles. Rear wheel drive still works fine. What am I doing wrong and what's coming apart on mine? I actually have a spare because they are impossible to find now.
I think the GMT 800 is the greatest truck ever built in the history of mankind. You could argue the 400 but efficiency and underwhelming performance holds it back
Whats the difference between NP149 and 246 trsnsfer cases? Mine has a metal tag with the 149 on it and the one I got was from a 2005 denali with a sticker tag, and it says YK 44-81-003
NP149 is a full time all wheel drive case, the NP246 is a selectable 4wd, 2wd, and 4x4-low case that uses a clutch pack to engage on the fly as the computer senses wheel slip
its kind of personal preference to be honest. For a regular daily driver or work style truck, I'd say stick with the conventional 4wd system. but for a high performance street/strip/auto-x kind of build, I think the awd setup is the way to go
LT if you have a 4x4 transfer case like a NP205 or a NP273 and run that to a dana 70 high pinion front axle and you swap its front differential for a limited slip so that it could run all the time would that be like a awd (of sorts) ?
the key for full time AWD is inside the transfer case and those two cases you mentioned do not have a center differential. if you tried to run those on pavement, it would bind up while turning corners and likely break something in short order. to make is true AWD, you need a case like a BW4481, NV149, NP120, or others.
AWD, interesting, always wondered how they worked... I just bought a 2005 Silverado 6.0 2500HD 4x4 with the GM 4L80. I REALLY Want a 5 Speed without a Granny Gear that could handle some HP and Torque Upgrades.
Is it possible to convert GU4 3.08 INTO AWD CONVERSION ON FRONT DIFFENTIAL AND TRANSFER CASE. JUST FOUND OUT THEY START AT 3.42 ON DENIALS AND EACLADES. PLZ HELP
Good day Sir. I'm tryn to get items for my swap. Electric wise what do I need. And for the driveshafts do I get them made or and which ones do I use. Thank you so much
3:18 *phew* thank goodness you have a cat on it! Lol awesome build dude! Looking to get me a work truck. But just in case my truck doesn’t have one, I’ll make sure to check out your channel so I can swap in an NV149 🤘🤘🤘🤘🤘
The pump body is the cause, as it hammers into the case and because the case is aluminum it just eats through it eventually. For 800 dollars I hope they didn't forget to put a 17 dollar part in it that will probably prevent you ever spending that amount of money again.
Haven't commented in a while. But here I am. Been watching and waiting. I gotta say your definitely starting to develop your TH-cam personality. Don't know if you remember my last comment. Lol loving the channel a lot. Keep on doing what your doing. Kinda weird but I'm proud of you. As always be good do good.
![[UNCUT] “บอสณวัฒน์” ลากไส้!! ใครหนุนหลัง "แม่ตั๊ก ป๋าเบียร์" I คนดังนั่งเคลียร์ I 30 ก.ย. 67](http://i.ytimg.com/vi/QlD7mU2KKRk/mqdefault.jpg)
OK guys, what's the vote? Is it really AWD? Most wheel drive? Sort of 4wd? or just plain cool...
Its AWD, almost the same setup as a Subaru. I know you mentioned one of the other NV transfer cases has a Torsen center differential, is that your ultimate goal?
@@jaredhuang2225 awd is awd whether it's engine and trans layout are RWD (Chevrolet) or FWD(Suzuki, Subaru etc)
The center diff distributes the power all the time to all 4 wheels. That’s all wheel drive.
AWD similar to Audi Quattro and Subaru and Mercedes 4 Matic and BMW x drive and all the other big name AWD systems
Awd
I have that Missing bearing LT...i can send you a pic of that bearing in an email if you need it.
dang, too late. the case is already together, and besides, it actually didn't look bad at all so I didnt mind reusing it
that viscous coupler will lock solid once it does. we had a 8 foot snipe and multiple guys hanging off it in automotive school even though they claim it divides the power 70/30.if you notice it will lock up on you in parking lots from turning and the difference in wheel speed front to back.anyway I daily drove an ss silverado for 9 years in the canadian snow and slop. best AWD system ever
They can prematurely lock the front in 100 degree + weather while turning. Had it happen a lot in a AWD safari in the Texas heat.
@@shyecjj Must've been a 2nd gen. First gens are chain drive.
Not a truck guy but I don't think a viscous coupler should ever actually lock up. They can transmit one hell of a lot of torque if you try to turn their two against each other fast, though. But my understanding of the things is "at some slow enough speed they will permit two shafts to be rotated independently." If it doesn't I'm guessing there must be some unwanted metal-to-metal contact of the parts inside.
@@patrickshaw8595 They don't lock up intentionally, I think they mean more of a soft sieze.
@@ItsDaJax Hmmmm. The silicone fluid is supposed to get thicker with higher temps. Maybe it's something like that.
not sure what the original comment was but in general awd means that the front and rear drive shaft can move independently of one another, this can be done with a diff and with or without a viscous coupler. 4wd meaning they are locked together, either permanently or with a locking center diff. a couple interesting tcases: 2001-2002 toyota 4runners came with a multimode tcase that can do rwd, awd, and 4wd. In the 80's toyota made a 4wd version of the tercel. The engine is mounted longitudinally, the transmission mounts like a rwd transmission but has a shaft that goes forward to an integral center mounted front diff that sits under the engine. There is a locking collar on the rear end of that shaft that locks into the rear output for the rear solid axle. It operates as a part time 4wd system with a fwd primary mode, it also has 6 speeds, with an extra low gear being a 4.7. diffs are geared 4.10.
Open front diff makes it most wheel drive lmao jk great build
I like this answer best because its the most correct lol... "most" wheel drive
I'm not really into all the nuances of gm power trains but an all wheel drive transfer case does not make an all wheel drive vehicle. My definition is if all four wheels pull at all times. Back in the 70s and early to mid 80s gm sold a lot of four wheel drives with open diffs. front and rear meaning even in four wheel drive, high or low at best you had two wheels pulling. And back then I did not see them as four wheel drives.
Free carwash, courtesy of mother nature
An AWD transfer case with a slightly under driven low range would be cool. You could run a taller gear in the axles for MPG while driving around town. Then shift it into low range for the track.
4WD-AWD..BLA BLA BLA..it doesn't exists in modern vehicles.."ABS torque vectoring is not 4WD..maybe it could be considered AWD..simply put AWD is full-time..4WD is a choice..but having either or doesn't mean you can put the power to the ground with all four tires..true real-time spin all 4 tires 4WD only exists in a few vehicles and in only low range..for instance the Dodge Ram 2500 Power Wagon..as far as I know the only true factory spin all four tires AWD vehicle is 1999-2004 Jeep Grand Cherokee equipped with the Quadra-Drive option..here is a demo of it ---> th-cam.com/video/0PmxnShlfZI/w-d-xo.html oh by the way..this is a 100% pure mechanical system..no wires or sensors or solenoids just true real spin all 4 tires AWD..
I’m curious. How much hp will the np149 hold? I’m working on a not awd build myself
Congrats on 80,000. Best show on TH-cam by far. Can’t wait to get the new trans in.
The 8.25 front diffs are built pretty tight and will pull both front wheels majority of the time
You can get a Tru trac in the 2500hd fronts. Thats my goal. Tru Trac front and back in 4x4 💪
Argument for the sake of argument. It's AWD, bro. Accept that youre wrong and move on from it.
It was Stuart Stogdill saying it wasn't such a fool. Not LT.
th-cam.com/channels/92xLFLhhAKS3z57G5bSsYg.html
Top notch video yet again sir!! Love how you kinda joke about the naysayers but yet explain it in full detail. Watched this video with my 4 month old and he was all about it and the music helps keep his attention. We were rooting for you when putting the case back together and watching that snap ring.
You you know of a transfer case that has a
2wd or Awd options
I the np 242 kind of does in the full time
Selection. But I think it just had a differential in xfer case no viscous coupler
Or a combo of 2 that would achieve those results
Look up family man racing or something like that and his
. Ls turbo AWD 3000gt
I think his was a locked case and switched to rwd by Colorado electric disconnect front axle
And I've heard of guys combineing gm new process cases with the jeep 231 but 242 might be doable too I've got one in my zj haven't used the AWD much
I've got a lunch box ratchet locker in the front so it don't like turning much
Actually i have everything too replace and rebuild a nv149😎👊🏻
Gotta love internet trolls that have no bearing (no pun intended) on what you are doing. As a famous philosopher once said, "They hate us cuz they ain't us"
Stuart Stogdill- the h8r.
th-cam.com/channels/92xLFLhhAKS3z57G5bSsYg.html
I love reading dumb comments from dumb people..its better than the videos. Almost..lol..keep it up LT
dude I thought my AWD subi a 95 impreza L wagon who is supposed to be AWD was for years. It drove fine. never gave me an idea that it wasn't awd. Center diff was blown to shit. Did i just fix that? sure I did. I gave it what it wanted. it wanted to be 2WD.. so I made it 2WD. bolted in a 5.3 LS and a 4L65 and a suretrack LSD and made that bitch 2WD.
Subaru still hasn't fixed the flaws with the boxer engines
@@shadowopsairman1583 The EJ22s from the 90s were pretty flawless. Adding displacment is where they went wrong, IMO.
Looking forward to seeing the upcoming Ugly Truck content!!! Keep up the great work LT!!!
I had a 2004 Tahoe with that transfer case. Actually was a beast in the snow and it was great for my wife because you know it didn't blow sideways as easily as a truck in two-wheel drive. Still did all-wheel drive donuts though. It's only the 5'3 and it had that that auto ride BS but the thing had 230,000 mi on it and it was a high output. Aluminum 5.3 not the LM for the other one... It only had like 2,000 hours on it. It was all highway I averaged sold it. It was like 65 mph average. It looks like a brand new 2000 Ford Tahoe. I ended up selling it to my cousin cuz he was in a pinch and he still drives it. It has 287,000 now I believe same original everything except for rear end. It did end up blowing a rear end. I think he was beating on it.... Dorothy never let me down
Please send that music down the road out of town .
Awesome videos, love the detail you go into these videos and can't wait to see new motor for ugly truck.
I never had a 4 wd or AWD,,, my had bunch of SWB full size Chevys though … when my oldes went off road (unintended ),,, I made rule about keeping 4-500 lbs of elevator counter weight up against the cab in the bed… AND got into flipping new take off wheels and tires so that I would always have a newish set of tires on those trucks. Thankfully no more ‘off roading’. ( and they shure rode nice).
So we always had rear drive Chevys ( wife and 40 years) .. we talked a lot about what fun retirement car we would like ( in our first few years of marriage I bought n repaired a wrecked 69 impala SS 427 convertible, and family car was a 70 Monte Carlo ( this transplanted rust belt boy loves Georgia rust free cars!!)
Our fav truck was a 03 that we put over 250 k miles on ( after buying used with 130)…
So after I retired I bought a low mile ( just under 29,000 miles) … o3 silverado shorty 5.3 .. as third vehicle…
I don’t use it much.. ( I find it difficult to put the miles on) ( a ‘problem’ that I didn’t give much thought to before buyin lol)
I'm very interested in what you're doing here because in a few years when I sell my 2018 Denali 6.2 I'm considering finding another 2001 C3 which was my favorite truck and doing a mild 500 whp LS3 in it unless the newer Colorado turbo can be made to hit 400whp easy enough.
Watching!!!
does the awd Tcase bolt directly to a 4x4 NV45?
They're the same brand, but its a 2500 box again so... will that same adapter work?
...again "GREAT and INFORMATIVE video...Do you have the info on the input shaft needed to do the 4L80e swap ?
My first truck was a '89 k1500 with 350 TBI nothing majorly special 5-speed manual after driving that I don't think I could ever own automatic truck. I don't understand that about the world. How pickup trucks don't come with a manual transmission anymore? I mean out of any vehicle on the road. A truck should be manual if you've ever plowed or done any work or off-roaded or Plano ripped a manual truck. You know what the hell I'm saying for work. It's better for plowing. It's better. Everybody's a big baby these days!
So that noise every single harbor freight hydro press makes upon release...yea...my ladies African grey has heard it so many times chillin on my shoulder as i build my single turbo and forged rotating assembly L33/t56/sn95 front clip and suspension swapped 1961 ford falcon, he imitates the sound so perfectly i guarantee you wouldn't be able to tell the difference. Ive also taught him how to say, "WHO FARTED?" Which makes me laugh so hard i dont even feel her punching me for teaching her incredibly expensive bird how to swear and offend everyone who comes out to the house. He says "wanna get high?" Just like towly from south park too. Hey i live in Reno, Nevada its legal here dont judge me.
People make me soo madd why don't u ask that dude if he was ever smart enough to be selected by horsepower tv to host the show TRUCKS GRRRRR PEOPLE MAKE ME FUC#×NG PIST ! just my opinion but you are a very very educated builder and I learn from your knowledge eagle eye viewer may know something I don't but I agree w u LT I've seen that baby tear off the line lemme tell u AWD is what slingshots that orange truck
Lt any advice…I have a 2011 sierra 1500 5.3 6l80 4x4. Have you every performed swap on later model truck? Thanks
Classy blurring the guys name out 0:09 so he doesn't get tag with hate comments. Haha
It's AWD as it gets. If that person disagrees, then let's see their build of an AWD?
The NV149 was in some of the Silverado SS's (I had one) and they were full-time AWD.
the NV149 has a viscous coupler, acting "like" a differential but is not a differential. The NV120 from the trailblazer SS has a centre torsen differential and would honestly be a better performance option. i think the front diff on the TBSS is torsen also.
the 149 is a much better option. it will lock solid and they are tough
@@gootch27 it won't lock solid as it's a fluid coupler, if it did lock solid, one would not have to replace the burned out coupler as was done here. The TBSS is a torsen which is developed uniquely for performance. Just like in the Nissan skylines, most rally cars and so on. The 149 is a city transfer case for urban vehicles.
Great videos as always. I love all the progress you make with these trucks!
Great Video buddy! Miss you from trucks! And great info. Thanks.
So this is a 4X4 transfer case converted to AWD? can you do vise versa for an 08 AWD Sierra Denali? I want to convert to RWD i dont mind carrying the transfer case free spinning
So I have 2 options. Cool just have to look @ prices. In your opinion which way would you do. And what's the 8.25
I'd like to see someone build an engine but keep the truck like stock looking you know but find one that's like mint with like 20,000 mi on it sitting in a garage. I know it's impossible but if you could find one like that and keep it bone stock and the only thing you build up is a transmission and the motor keep it four-wheel drive regular four-wheel drive. If you want to give it a small lift I can go with that exhaust intake. You know those kind of things. Of course it's going to be a manual transmission. That's not even a question, not even a question
truly off putting clickbait and intro for a first timer... Okay google, don't recommend this channel
You cracked 80k subscribers. You should make 100 before end of year.
I hope so!
If anyone tells you that's not AWD they're morons, sorry. I don't care how long they've been in the game. AWD is not a completely defined system it's an ability to drive all 4 wheels on the street. Full-time, AWD on Demand it's all the same thing.
... could it be part GMC with most wheels drive (cousins and such ) .......
Nice work. Looking forward to seeing the big block content. I always ran big block Chevys in my jetboats.
It’s AWD badass although I like it black better because I have the exact same truck. I’m 4wd I mean 3wd lol
Just caught this video.. So where is the shift forks??? 4wd cases have shift forks... looks like an AWD case to me
So on rock auto I looked up that bearing your looking for the believe it in s in the transfer case overhaul kit on a 02 caddy Escalade np 149 ?
Thanks for the information on the rebuild of the AWD system. Nice garage you have
thanks!
Well now I'm really excited for your next upload after what you mentioned cleaning up the output shaft!
Your actually better off it Not being AWD . Those units once hurt are JUNK
Do u have modern muscle salvage number I want to order a coupler too for my 4l80 to put a 149gm
On the not an awd team cause you made us wait to see the new motor.
🤣😂🤣
ok, that's fair. no argument there
@@LawrenceTolman it's only awd if the wheels are all on the ground LOL got to love waiting for parts .. my CJ7 dropped the rear drive shaft going down main st about 20 mph . at night so no traffic . picked up the drive shaft ,, put jeep in 4wd drove home front wheel drive .. yokes had the strap clamps they bent .. also broke the strap bolts and bent a few .. they were tight 2 days before I checked .. had the tranny out 400 miles ago .. 10 days of waiting the company said they do not stock the yoke any more .. ordered another one 2 days later jeep driving .. I need to rebuild the warner t5 5 speed tranny ,, that's another story ..
As someone else said that's how Subaru does it. The viscous coupler is essentially like a small torque converter, and they are, as well, usually not rebuildable. You can get full lockup in a torque converter, a percentage of lockup, in the transfer case or at the input to the transmission. GM was savvy enough to use a viscous coupler to create their desired ratio of front-to-rear bias. This can be changed just like a lockup torque converter in a drag car. This setup is found is Mercedes , BMW, Acura, GM, Ford, every manufacturer -not only in the transfer case but the transmission. The only difference is using fluid dynamics to couple rather than mechanical/ positive lock through a gear or a chain. Physics 101. Yes, it's AWD.
The bias does not come from the viscous coupler, it comes from the planetary differential (see patent# US4677873A if you are curious!). Subaru 5MT uses an 1:1 spider differential, which is why it's 50:50. (Some!)6MT use a planetary differential more similar to the NP/NV transfer cases with a few different ratios used depending on the year/application which is why you see everything from 49:51 to 35:65 bias listed for those.
This is all independent of viscous vs DCCD.
In both cases, the front and rear ends are still mechanically linked. All the viscous coupling does is provide a somewhat speed sensitive restriction on how much differential action happens. One inaccurate way it's described is that it has a theoretical range of 40:60 (fully open) to 50:50 (fully locked) . But since technically a fully open center diff can be 50:50 and a fully locked center diff is ALSO 50:50, torque bias obviously doesn't tell the whole story!
Use welding pliers to spread that ring when u put the housing back on where that rubber peace goes back in and use a flathead screw driver n the speedometer to lift it up to the ring on the bearing the welding pliers dont slip and spreads wider and it pushes right up with a flathead screw driver through the speedometer
I know this is an old video, but what’s the max horse you can put through that unit?
do you like that Trans jack?
Build a bearing installer kit? Brand?
Can you please send me the parts and sources where you got these parts from? How hard is it to really get done? Thanks!
I always get trans fluid between the trans and center diff as well. I also forget to have a pan ready every time too!
I had a pan under there, but most of the fluid missed it lol
Going from a 3.06 first gear to a 2.48 first gear may affect your 60 ft times
Correct it may slow it down some, but I will have have a better torque converter which may offset it slightly. Or at least that’s what I’m hoping
I was thinking the same thing for different reasons. I used to tow a camper with a 4L65 truck and converted it to 4L80 after the 3rd rebuild. I missed the first gear on the 4L65
Please stop saying OBS!!!!
Please shut your mouth
Idk 🤷♂️ I don't think it's all wheel drive 🤣
Well it is all wheel drive. And it’s one of the best projects out there in TH-cam land! I primarily drag race but I do love interesting street projects! So now I have to build a street project! Thanks a lot LT see what you started😎
hey thanks a ton!
Lookin Good!!! Hey LT, (or anyone else) have you done any research to find out how much hp/tq that transfer case typically can handle? just wondering. Also, would like to hear your opinion on the differing 1st and 2nd gear ratios of the 4L60 vs 4L80. Finally are you going to build the roll cage for the ugly truck or farm it out, again just wondering. Can't wait till race week :)
hey thanks! I know several Silverado SS guys have reported using the NV149 with 1,000+ HP with great success. I don't plan on pushing it that far, but we'll see. I don't love that the 4l80e has a higher first gear ratio, but I chose the 4.30 axle ratios knowing it would help offset that some. sure, it won't be as quick off the line as it is with the 4l60, but I'm also hoping the nicer Circle D torque converter I have will offset that a little. On the roll cage, I may have to farm some of that out since I Don't have a tubing notcher or bender...
Please help me I have a 2003 duramax 4x4 5 speed Allison with a 263XHD transfer case and I’m trying to adapt my bw4481 transfer case from a 2003 Cadillac Escalade ext awd the front driveshaft slips in and will work for the front diff but the input and out put shaft won’t work and help would be appreciated
the Allison uses a special 29 spline larger output shaft that was never mated to a BW4481. In order to make that work, you'll need a custom input shaft for the transfer case which will probably make this project not make sense to accomplish...
I still don't understand$ eve car has 4 wheels, so 4WD must be equal AWD... and then 2WD if there's switch, or the one with the switch they call 4WD because it could be 2WD???
It has to do with when power flows to the front. A “4wd” vehicle has a button or lever that allow you to disengage power to the front. An all-wheel-drive system I s always sending power to all four wheels, plus has some type of center differential to allow easier turning
Great video! Thanks for the detailed look at rebuilding the awd transfer case!
I got a 05 Sierra with a 5.3 rn I got a 227/238 cam,trunnion upgrade, .660 dual springs, and stainless intake/exhaust valves if that even makes a difference, 3200 FTI stall, tbss intake with 36lb injectors, long tube headers, and stock heads, ARP Main studs and ARP head studs it’s slow until I get to 60mph but it’s still a base tune I sent my computer off and told the guy everything so maybe that’s why but Ik I went to big on the cam but… what should I do get a larger stall or what I’ve already got 3.73 gears as well might need to throw a shot on it it’s freshly built with new all new bearings and my builder gapped the rings for me just in case I did want to put a shot on it but what would u recommend I do I don’t really want to run nitrous/boost
Ask Richard Holdener or Nivlac57
LT…I just found this channel. I remember LT from Powernation. Seems like a nice channel here, so I subbed up.
I have to mention how impressed I was watching the video and seeing LT use hearing protection like he did. People do not realize how easy it is to damage your hearing and how easy it is to protect against it.
Kudos!!
Spent a lot of time around machine rooms ( retired elevator man here) … the time I spent around those high pitch generators !!! I wish I could go back n time n wore ear protection … best to this channel .
New subscriber here. I have seen some of your videos… we have owned bunch of these 99 to 2007 ( and before n beyond) Chevys . ( three daughters used em in H/S n college too)… I just maintained them ,, no racing ( though I heard stories bout the youngest) .
Our most favorite was a 2003 short bed regular cab 4.8 that I bought with 130 k miles and three years old . .. sold it at 385 k miles 13 years later ( same engine replace trans with a new one at 175k) for same 8 k I paid for it.
I thought the 149 was only in the Silverado ss? And the Denali, Escalade & trailblazer ss used a different transfercase? We use the 149 in our syclone builds, but behind an L83 with a blower.
it was best known for being used in the Silverado SS, but SOME denali's and escalades used it as well in the 2001 to 2004 range. however, they also used a Borg Warner AWD case in the other denalis and escalades along the same time, and those used an open center diff which wasn't as good as the NV149
I have one of these in a GMC Savana Van.
I've broken three of them with in 140000 miles.
Rear wheel drive still works fine.
What am I doing wrong and what's coming apart on mine?
I actually have a spare because they are impossible to find now.
I'm very careful to keep the same inflation equal
if you THOUGHT that was an AWD transfer case why rebuild it.
Because he just put it in stock before LS Fest, so he is overhauling it now, makes plenty of sense.
Because it had over 200k miles on it, and most of all, because I had to swap to the 32 spline input shaft for the 4l80 swap that’s coming
I should have payed closer attention , I understand
I think the GMT 800 is the greatest truck ever built in the history of mankind. You could argue the 400 but efficiency and underwhelming performance holds it back
I love em both... I kinda like the looks of the 400 better, but the LS only came in the 800... maybe an LS swapped GMT400 would be the best in my book
Did you custom make that clean station? that's dope
The guy LT is talking about is at the bottom of the comments..🤦
Whats the difference between NP149 and 246 trsnsfer cases? Mine has a metal tag with the 149 on it and the one I got was from a 2005 denali with a sticker tag, and it says YK 44-81-003
NP149 is a full time all wheel drive case, the NP246 is a selectable 4wd, 2wd, and 4x4-low case that uses a clutch pack to engage on the fly as the computer senses wheel slip
I have 96 k3500 5.7 with 4.10 gears, would I benefit from that upgrade to awd
its kind of personal preference to be honest. For a regular daily driver or work style truck, I'd say stick with the conventional 4wd system. but for a high performance street/strip/auto-x kind of build, I think the awd setup is the way to go
A 2 wheel drive truck doesn't have a transfer case chain bro, :) 2:36. Yes I know what you mean (when in 2x4) Just bustin yo ass.
I must've been dehydrated that day or something lol
It has all the drives.... if it hooks it shouldn't matter that much.. parish chevy ripped major butt with a 4x4 case in its beginning.
I remember the Parish truck from back in the day, that was def. part of my inspiration
Def AWD
LT if you have a 4x4 transfer case like a NP205 or a NP273 and run that to a dana 70 high pinion front axle and you swap its front differential for a limited slip so that it could run all the time would that be like a awd (of sorts) ?
the key for full time AWD is inside the transfer case and those two cases you mentioned do not have a center differential. if you tried to run those on pavement, it would bind up while turning corners and likely break something in short order. to make is true AWD, you need a case like a BW4481, NV149, NP120, or others.
Whattt.... LT what's going on North Maine steve
Love the videos, but we need to talk about those jorts....
What a job! It’s a pleasure to see the prolixity of your work!
Cảm ơn cô Mây, rất tuyệt vời
You should put a Hummer H3 transfer case in it
Is that a lowered Toyota behind the gmc? I like it
AWD, interesting, always wondered how they worked... I just bought a 2005 Silverado 6.0 2500HD 4x4 with the GM 4L80. I REALLY Want a 5 Speed without a Granny Gear that could handle some HP and Torque Upgrades.
Is it possible to convert GU4 3.08 INTO AWD CONVERSION ON FRONT DIFFENTIAL AND TRANSFER CASE. JUST FOUND OUT THEY START AT 3.42 ON DENIALS AND EACLADES. PLZ HELP
It looks like Yukon Gear and Axle offers a 3.08 ratio for the 8.25” IFS carrier so yes, if you can re-gear a differential this is possible
Good day Sir. I'm tryn to get items for my swap. Electric wise what do I need. And for the driveshafts do I get them made or and which ones do I use. Thank you so much
Awsome content, thanks for showing us
Wait what the motor?!!! Did not see that coming
I mean, isn’t this not the first time you did this swap? I remember you doing it for that Trucks! show.
yup, I did the same AWD swap in a GMT400 truck on the show
I think you said it somewhere but, where did you get the 32 spline input?
Tim S. at Modern Muscle Salvage in Michigan
WPC and cryo treatment would be an awesome touch to the rebuild.
Where did you get all the parts for the rebuild kit
I've seen people modify their parts washer with a car filter it's really neat maybe you should think about that
I thought about that, but never got around to doing it. would be a good idea though.
3:18 *phew* thank goodness you have a cat on it! Lol awesome build dude! Looking to get me a work truck. But just in case my truck doesn’t have one, I’ll make sure to check out your channel so I can swap in an NV149 🤘🤘🤘🤘🤘
I think I had that wear thru on my 03 1500 xfer case. Had it repaired for 850.00. They also replaced the case , not sure if they got the cause.
The pump body is the cause, as it hammers into the case and because the case is aluminum it just eats through it eventually. For 800 dollars I hope they didn't forget to put a 17 dollar part in it that will probably prevent you ever spending that amount of money again.
U shld show hole family they pay the price dad in shop lol
Wait, you drop the "got the motor yesterday..." Now I will have sleepless nights until your next upload... 😂😂😂
Haven't commented in a while. But here I am. Been watching and waiting. I gotta say your definitely starting to develop your TH-cam personality. Don't know if you remember my last comment. Lol loving the channel a lot. Keep on doing what your doing. Kinda weird but I'm proud of you. As always be good do good.