Everything you need to know about your SCHOOL BUS ALLISON transmission | Swapping Transmissions
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- เผยแพร่เมื่อ 16 ก.ค. 2024
- In this video, Eli discusses the Allison series transmissions: the AT545, the MD3060, the Allison 2000, and the MT643. These are the most common transmissions found in school buses. He will also be discussing details for our current transmission swap from the AT545 to the Eaton 5-speed manual. Bell housing sizes and how they differ will also be covered and how to measure SAE1, SAE2, and SAE3. Eli also touches base on a useful conversion company: CAConversions.
CHAPTERS:
00:00 Welcome to the video
01:02 The Allison series
08:24 Swapping from a mechanical to new transmission
13:25 Bell housings
16:09 Sourcing a donor transmission
16:49 Is your tranny dead?
22:09 So your transmission is dead
26:07 Before you swap
27:39 Swapping to a manual
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Thank you for your patience with this video, y’all! I tried to make it as entertaining as possible, but hopefully this video gives you some insight on the Allison series transmissions or some useful information for a transmission swap. Please feel free to add any information in the comments below 👇🏼 and remember: I am not a professional
Hey buddy you shed so much light I had to put my welding hood on😊 oh, one thing you didn't mention was how would a person identify which transmission they have? Most of these people selling buses they don't even know which way is up😢.
@@sjf67gto
Oh yeah! I hope it’s an auto darkening mask!!
There are two great ways to identify what type of transmission it is, the shift knob & the tail-housing of the transmission. Considering you are not in person to see the tag on the left side of the unit. These are two photos to request when purchasing and is a great recommendation for a new video!
Basically, if the tailhousing is a whole cast it’s the AT545.
If you see a dozen or more bolts holding the tail shaft to the housing, it’s a more desirable transmission. MT643, 2000 series, 3000 series.
I can send you photos of each if you email us at parishskoolie@gmail.com
@@parishskoolie glad you liked my comment, send all the pictures you like your video reminded me of my first car a 1967 GTO I did the same thing change the tranny from an automatic to a standard so I can relate to all your aches pains and frustrations.
Great job of explaining all that. I've got a couple friends who swapped 545's out for other Allisons. Its a great upgrade for sure. easily the best video I've seen about this, man!
Thanks buddy! Our tranny conversion video will be coming out within the next couple of weeks! Stay tuned. I would've had a much better time if i went Allison to Allison, but now i have an SAE 2 bellhousing! Thaks for watching & commenting!
@@parishskoolie I think I've met you before man. Were you at the 2020 swarm at Doe Lake?
@@cbthethird
Nope! Our first swarm was 2021
@@parishskoolie Oh ok. the first one we've missed! Won't be at this one either- probably be next year. Hoping to bring our Wanderlodge but if not we have a shorty.
I cannot tell you how helpful this video and your trans cooler video has been to me! I worry constantly about my At545 mainly because of the hate it gets online. I have driven up and down mountains, trails and highway, for 3 summers with no issues (besides slowness lol). I just checked my fluid using your tips - it's red, no burnt smell and it did not burn my skin, happy days! I do want to install a cooler so will be looking into that. Again, thank you so much for your clear explanation, covering it in such detail easy enough for non mechanics like me to understand. YOU ARE THE BEST!
Thanks for watching bud! Glad your 545 is doing its job. It’s a beast, just slow. Run an oil analysis on it if you want better insight on its condition!
So much information in this video! Thanks for putting this out there
My pleasure!
Great content!! Thanks so much for your clear explanations combined with intelligent choices for transmissions!!
Thanks for the compliments! Glad you enjoyed this video of me rambling. Thank got my wife was able to make it digestible💜😁
Great video! I didn't know nothing about transmissions, and I found it very well explained! Thank you!
AWESOME! Happy you found this video helpful. Even with all the positive comments I’m still insecure about my explanations, still an amateur here😂
Great advice on this video for folks with need for a swap.
💛💚💜
Thank you for making this video and the information.
Best of luck! Thanks for watching!!
Great information thank you so much!
Glad it was helpful!
Great tips!!! Thank you so much! Lots of great information.
Your welcome, Thanks for watching💜💚💛
I have blue bird whit 8.3,2 buses have 6 speed,1 909 Eaton Fuller one whit 643 and one whit 7 speed and 7 speed is a monster omg that bus is so fast and very reliable on fuel more than the rest, super fast ,the 909 Eaton Fuller is good to very powerfully and fast,good video amigo
So helpful! Great information 👍
So glad you found value! Thanks for watching 😊
I've been following along for awhile now, nice work on the swap. I have a flatnose Bluebird and I'm researching options. You mentioned that a manual transmission cannot be swapped into a flatnose, cabover semis would beg to differ. I can't find any information online, so it looks like I will pave new territory and document my journey. Your information provided here is invaluable. I will now be looking for an Eaton Fuller 7spd vs the 10speed I had originally planned
So happy to hear you’ve found value in our content. It sure is frustrating to do mechanic work & film at the same time but you should absolutely pave the way with your flat nose!
You are also right about cab overs, in the year since filming this I’ve had the pleasure of driving and working with a cabover. There are a few transmission options in these cabovers that are shifted by cable. The one I’m familiar with is Eaton’s roadrunner series but it’s just as wide of not wider as 10, 13, 18 speeds. My concern is it fitting between the frame rails.
We have a 7 speed Eaton fuller for sale here in Alice, TX. A used take out
Feel free to email me for my contact info if you need help or an ear.
Parishskoolie@gmail.com
exactly the info I needed.! Thanks.
Amazing 🤩 glad the video was helpful. Thanks for watching!
Great information your sharing!
Thanks! Glad you enjoyed it!
We have a Freightliner 7.2 cat engine and 545 Allison in a Thomas 26 footer With 49K miles. This bus was owned by the doe department of energy and used as a shuttle for scientists to oak ridge labs. The trans fluid looks and smells new, so we are not really worried about the trans right now, maybe down the road, will see how it handles the mountains this summer, thanks for all your info!
You’re welcome! Best of luck, safe travels
Thank you, you save me very much money !
We are glad you’ve found value in our video! Thanks for watching Levak 😊
Yep, I've done the AT545 to MT643 conversion. Added a cooler and now tow over any pass with zero overheating issues. So glad I did it!!
Whoop whoop! I’ve only driven one 643 on flat highway. I’m so glad you did it too😂
I need more info about this. I got a. At545 trying to swap it
Nicely done! It's so good to hear a voice of reason regarding the maligned AT545. Absolutely, it's not the most desirable...the lack of torque converter lockup wastes some energy, creates some extra heat, and reduces (almost eliminates) engine braking effect...but they are common and well built and can serve well, if taken care of.
Don't forget the MT653, if you can find one. It's just the 5-speed version of the 643. Both are great transmissions.
And, one addition to the mention of the MD3060 (or the 2000s). Most do indeed have pushbuttons, which is a good way to identify those. But we've also bought school buses with MD3060 transmissions that have a manual shift lever. So, we advise shoppers to not immediately assume a manual lever means a less-desirable transmission. Look for the little red LED indicator square next to the shift lever...which an AT545 or an MT won't have.
Thanks for putting this video together! Liked and subscribed.
AWESOME! Thanks for watching & following along friend!
We would've loved not having to swap our tranny, but out 5.9 Cummins is very grateful we did. Feels like we just unlocked a governor!
Thanks for your input! I COMPLETELY overlooked the MT563(even tho i have a manual for all these Allisons). The manual shift indicator is great info as well, Its crazy how inconsistent these buses are with their interchangeable options.
full swap video coming out soon!
@@parishskoolie Right on. If you get West on I-40, let us know. We're just West of Flagstaff and have a nice bus parking spot you're welcome to stay in for a few nights. Summer temps up here are nice.
Hey guys great video thanks for the Info helped alot my girl and I just got a 2002 Is International with the AT545 a it ok for now but it's great to know the other options thanks again for the Info yall take care
Thanks for watching buddy, congrats on the bus! Take it slow, it’ll go a long way;)
Thanks appreciate that yeah we ran into a few mechanical issues right off the bat Which has slowed progression on the inside down but we've got most fixed so far one other little problem Has popped up a squealing bearing I think it's coming from the alternator so working on that I'm trying not to get discouraged I know it's a process and it'll come And I see everybody who has a skoolie goes through it but it sure would be nice if things would just not break for a little while lol we really enjoy yalls videos they have been helpful Especially the one about licensing and insurance we live in Louisiana too so it was very helpful
@@austinpowers82484 It’s always ups and downs. Turning wrenches is a part of this life, we are over 3 years now due to this process of getting discouraged and handling mechanics! When you get to see mountains behind the wheel it’s all worth it.
Per the squeal, look into a tensioner pulley. Those usually make the most noise(if you are still troubleshooting this)Assuming you have the T444e you can get a 7.3 power stroke one at any auto parts store. Keep on keeping on buddy!
Thank you
You're welcome! Happy to hear you enjoyed the video 😁
Excelente explicación, saludos desde Venezuela
Gracias, saludos
Great video and I'm impressed with you taking the time to research like you did. I have a AT545 in my 1991 with a Cumming BT6 12 valve. I haveonly put around 75 miles on it and that was driving it to my shop from the seller so I do not know the condition of the 545 other than the fluid is dark collored smells but not so much " burnt ". My plann is to of course add an external cooler after the radiator and then to the external filter on the side of the 545.. Next I am going to take the pan off , change the internal filter and fill it with PAO pure synthetic fluid to get the protection and it will also keep the 545 cooler than styandard fluid would. Then I will puit around 50 miles on it and drain , change both external and internal filters then fill with new PAO fluid so I will have gotton most of the old fluid out of the torque converter . I feel good about doing it this way what do you think ?
Thanks for watching and commenting with your compliments! I have heard from many mechanics than a complete flush in a mechanical transmission is not ideal.
I would first run an oil analysis to see what excessive metals are present.
Change your external & internal filters and keep on rolling. I would not recommend dumping again after 50 miles. I can’t tell you why old school guys recommend this method, but my assumption is the conditioners & cleaners in “new age” oils will strip the residual clutch material away quicker.
Change your filters and keep that baby cool. Should last a long time!
Nice job bro not a lot out there like this. It would be handy to get a hold of wiring schematics.
Thanks friend!! Wiring schematics would be awesome, I wish Allison was that friendly😂
Allison MT 653 is a 5 sp with a "granny low" so with a higher differential gearing you can effectively have a OD transmission, a least when it relates to engine RPM vs road speed.
I laid eyes on the Mt653 for the first time in the past two months. Caught me by surprise, it looked similar but I knew something was off!
It’s a bummer they had a granny gear instead of an OD. They missed the mark🤣
Love the video it was great I learned a lot I have a 85 international with Detroit 500 V-8 diesel 545 Allison. so this bus has 96,000 original miles. The transmission has been perfect except for I had it idling while loading all of my belongings to leave my property and start traveling. and went to move the bus and it would not go into gear. shut it down. checked everything everything seemed fine. linkage is moving fluid perfect not burnt super bright red no metal shavings in just looking on my hand. doesn’t smell burned. cranked the bus up again went directly into gear didn’t think much else about it just thought something weird happened concerning but. went ahead and tried to leave went through all of the gears and then started up a hill and would not pull. Will not go into gear at all any gear until you shut the engine off let it sit then it will go into whichever gear you put into first if you pull it back out of that gear while it’s still running it will not go into anything else and will not go back into the previous gear. The temperature that day was about 100° outside the engine never overheats it was running about 160. i’m dropping the pan in the morning. i’m a little bit stumped I do know the internals of the transmission but I never have rebuilt one. I and I definitely do not have the money to pay for rebuilding one. if there’s anything you can think of that this may be please contact me .
maybe Facebook or messenger I check every once in a while (Marc Marine)
sorry for the super long book haha. hope to see you guys on the road one day I’d love to show you how I’ve built my 40 footer. it’s very unique. thank you guys and I’ll check the comment section again.
Thanks for watching! Sorry to hear about your misfortunes. I hope dropping the pan will give you more insight, I am stumped too if your fluid is nice & clean. Then again, I’m no transmission tech.
I have a tremec 5 speed tranny here in Alice TX that should bolt up to that Detroit.
It definitely sounds like the trannny is toast, but hopefully it is something simple. If not, I’d use the opportunity to upgrade that tranny!
The HT740 is a full mechanical high HP tranny used in the 70’s-90’s. Could be an option for you too!
yes I am very stunged myself well I’m in Arkansas. so don’t tempt me lol 😂 I will get ready and drive down there today on my bike strap that to the backseat and start the swap haha. Would you want to call me I would like to see what I can do to get that transmission from you lol
@@2skoolie4kool46
Email me, I’ll shoot you my phone number.
Parishskoolie@gmail.com
My 1992 Monaco Dynasty has a 300hp Cummins 8.3 with exhaust brake and MD3060. 4th is 1:1, double overdrive, lockup, digital pad with dual gear display and econ mode
Beautiful set up! Crazy how this 3060 was used for so long🤯
8.3 Cummins is a SAE 2. Very popular in flat nose rear engine busses
Yessir!
Big engines, big trannies in rear engine flat noses. Except for the occasional cheap school boards who ordered 5.9’s
another nice thing about a manual gearbox is that you can shift down and take youre foot of the gaspedal and use the engine to slow the bus on long downhill slopes , saves you overheating youre brakes
as for the electronic transmissions : even if there stand alone tcm they still need some info from the engine , things like trottle position rpm and maibe boost vacuum , some of these it can get from the trans itself but theres a big chance it piggybacks some of the signals from the engines sensors
hmmm figured the engine to trans mounting plate on the engine behind the flywheel was wat you needed to transfer to youre other engine , to make another size bellhousing fit , at least thats wat i seen on DEBOSS GARAGE , the guy often thinkers with diesels and changes engines in all sorts of tuff from a dodge pickup engine intoo a dozer to an chevy ls in an audi quatro , might be usefull to watch some of his stuff as its verry out of the norm stuff and he has some verry ingenious solutions to things
the burned transmission fluid smells like burned electric components / circuitboard , if you ever released the magic smoke on sumting electronic you know the smell
Yes! I’ve watched quite a bit of been deeboss garage. This is what I meant, it’s called the “clutch housing” on this 5.9 not sure of other motors. Thanks for watching buddy!
Don’t let the smoke out!
There's a step-down ring sometimes installed on a SAE2 flywheel housing that allows the SAE3 Allison bellhousing to bolt to the assembly. You have to use the appropriate adapter / spacer that allows the Allison torque converter to bolt to the engine's flywheel / flex plate.
Eaton fuller did make medium duty 10 and 13 speed transmissions, which are the rt6610 and rt6613. They weigh less than the big 10,13,and 18 speed transmissions.
Nice!! Thanks for watching.
Good to know, they don’t so seem easy to get ahold of.
@@parishskoolie oh. I see.
Great info! Thank you. I have a 00' f650 with a 545 and my speedometer stopped working. Have noticed any drivability issues. Speedo sits on zero, rpm's work. Could you suggest a couple things to check? I can't find much info on this.
A Eaton 13 speed will fit between the rails of a 1998 Thomas bus with a 5.9 in it with all the parts and with hydraulic clutch.
In the years since this video I have learned anything is possible with the right amount of effort plus money🤣
I have seen many folks on TH-cam south of the border putting 13 speeds and larger in school buses. Even seen one in a flat nose!
I don’t have that kind of effort, but I agree now.
not boring!!! thank you thank you thank you!! like and subscribe is the least i could do!
Wow thank you 😊 I’m glad you found value in this video and thanks so much for subscribing! You’re awesome!!
The AT545 is a common RV transmission and is fine on the highway and interstate.
Yes, it was. Thank you for your input, did you watch my boring video or are you just responding to my thumbnail photo?
I am installing a 1000hs, as long as the donor tranny has a round bell housing it will bolt up to a 5.9 12 valve.
Hopefully this is a question & not a statement.
Most bell housing are round, SAE 1,2,3 are all round with the same 12 bolt pattern. It will only fit if you have the correct bellhousing size. Measure center bolt to center bolt, best of luck!
i got two Ford trucks 25 ft box truck.....sometimes gross 34,000 lbs....they are 95 models...had a long time....i had no problems with them what so ever....never go back to manual...i got tired or replacing clutch and press plates long time ago....
Xcalliber transmission is another source of built allisons per vehicle.
I'm looking into changing my AT545 to a 6spd Allison 2000.
My daily vehicle with the duramax / Allison 6spd combo has made me want the newer style in my 2000 step van
I hope the 5.9 Cummins step van will be a better driver with a park position on the shifter, a lockup converter and two overdrives that will help offset the 4:56 rear gears.
Oh! Awesome resource, thanks bud.
There’s no way it wouldn’t be perfect with all those upgrades! Sounds like a very tight job tho on a van😟
I was bummed to find out my RPMs weren’t effected with the extra gear. I was doing 2400 @55mph. Now doing about 50-75rpm less, it seems like bigger tires will make all the difference. I pulled the rear chunk out, but after doing the math it won’t be worth it. Our bus now has 4.66 and the donor bus is 4.33
If I'm not mistaken the final drive ratio is still 1 to 1 in the non overdrive transmissions.
Fortunately my AT545 and the T2000 are nearly the same size for fit, and the step van platform
was designed with lots of room to work.
Actually I'm tempted to just find a wercked Chevy 2500HD with the Duramax / Allison combo and just transplant the lot.
The only real difference between the T1000 and T2000 internally is the gearset is angled for quiet operation in the T1000 and a T2000 has a straight gearset for a very slight power advantage.
@@beaversstumpgrinding3352 I believe you're correct about final drive ratio. wish I would've realized this before hand! we are still satisfied with our manual 5 speed! Its Much easier on the motor! good luck with your swap buddy!
@@parishskoolie NICE VIDEO,IS THE MT643 FASTER THAN THE AT545?
The best transmissión between all the rest is the 643 5 speed, I have one whit over million miles when she death, now I have only one on service whit around half million miles or may more that whit no issues, is the most reliable transmission, the 2000 just work couple months in my country some time work for 1 month 3 months 8 months but never survive a year is trash for us,is the reason why we swap to 909,13,6, 7 or 10 speed, the 10 speed work so good the 15210 ,14609,14607 ect,5 speed we broke by half some time 😁😁😆💪🏿🤯 very loco drivers there amigo we love the torque from 250hp 275 ,300hp or 240hp water cooler different versions non intercooler,I love this video 👋
Thanks for watching buddy! Where are you from?
Those are some sweet set ups! The MT653 is a unicorn, I spoke to a guy this past week who has a 12v 5.9 with that MT series on the back.
Great Video, I have an Allison 545 and an IHC 7.3L A170 motor, I want to swap to an MT643, other than the drive shaft length, What other things do I need to do for a swap. Thanks.
You will need a different flywheel, and you’ll need to take off the adapter ring. Best of luck, email Parishskoolie@gmail if you need quicker assistance.
Hello I just watched your video and loved it. I have a 1998 International Amtram 7.3, & on the highway at 60mph the rpm was 23 to 2500. So is it safe to say I can only drive her at 40 to 45mph?
Secondly, how do I know which transmission my bus has?
Thank you for a very informative video.
If I plan to tow a vehicle should I add a transmission cooler, just change the whole transmission. Thank you !
Thanks for watching bud! I’d say it’s safe to assume you have the AT545 at this ratio. It’s not unsafe to run on the highway at that RPM but I would not consistently run 4+ hrs at this speed. I run my 5.9 Cummins at 2300rpms consistently @60mph now.
If you crawl under the bus, your transmissions tag will be on the passenger side. Will probably be covered in oil & debris. Bring a rag!
I will be pulling a AT545 out of a 1996 international bus short bus with the T444E (7.3) gunna be trying to swap In a MT643 that was coupled to a 453 Detroit see what bell housing it is when I get it. Just from online s looks like the SAE 2
I would imagine it’s an SAE 2 this is what all(most) 7.3’s come with. Luckily, I have found many of them with just an adapter ring in between the bell housing that converts it! Hopefully you have one, not all do.
The Detroit I have much less experience with, best of luck!! Your motor will love it without that 545 behind it.
Have a t444e with the AT545 do you recommend the MT 646 or 1000
Albert, did you watch this video? It should have cleared up some things if so.
This is a preference question, you’ll have to decide which you want from the characteristics of each transmission.
I have a 2000 series with a 5.9. Would there be any benefit to swapping to the MD3060? ( 2004 Thomas MVP 27ft Flat Nose)
You’ve got a sweet set up already! If your 2000 series is going out we have a lot of used ones in Alice, Tx to choose from.
Not for the $$ it would cost, you could potentially gain a sixth gear but at the expense of a lot of resources. The bell housing on the back of the 5.9 will have to be swapped. MD3060 has an SAE 2 bellhousing.
Did you have any problems with your engine ECM working right with the manual setup ? I know with cars and trucks you have to change your program in the ECM because was a auto
Since the 545 is mechanical my computer was already programed correctly, I did however swap the computer over from the donor just in case. The donor was also 5 extra HP so I was hoping this was controlled by the ECM as well.
If you want to know the shape of your transmission send an oil sample in and have them do an analysis on it.
The lab results will inform you as to approximately how much longer the fluid has to it needs to be replaced and if there's any abnormal contamination in the fluid don't forget to change the filter on the transmission, as many have a independent filter mounted near the side of the motor and some internal transmission filters are actually filters and some were screens so consider replacing that as well.
Allison also used two types of transmission fluid one of them was a 390 something in the real synthetic one was a 296 so you need to research that when making the tranny swap also as the lower number is the real synthetic that is a lifetime fluid other than replacing the spin on filter.
And Allison transmissions have many number series and some came with a close ratio and some with a wide ratio. I prefer the 2500 series if your GVW is under 30, k, if it's over that go for the 30 60 with the retarder if you can set that up you'll never need to use your brakes until you're sitting at the light.
Thanks for all the additions!
Any idea what an oil analysis costs?$$
@@parishskoolie any Allison transmission dealer , cat and Cummings specific shops should have the kits in stock I think it was like 30 bucks last time I did one you get a printout from the lab just need to let them know what oil they're dealing with engine transmission oil whatever, as this test is used for engines and transmissions so they know what they're working with and looking for.
My dilemma is my 545 still works it's in a 95 Freightliner with a 5.9 second gen over 3.76 dif spinning 225/70, 19.5 tires.
So my bellhousing is a number three and I have a fresh 644 on the floor with a number two bellhousing.
Do I change out my ring and pinion 3.33/3.08 and run the 644 or go with a 2500 PTS with the overdrive?
Crazy Wayne, ever heard of anyone installing a 3060 behind a International DTA-360?
I have a 1993 Oshkosh Eldorado bus with a 5.9 Cummins. It’s automatic so does that mean I have the AT545?
No, every Allison is an automatic.
the md3060 can be found in 1998 an up tc 2000 busses. minea a 1999 an has a factory md3060 in her made un jan 5th 99
WHOOP WHOOP!! Sweet transmission option. Wish we had it in either of our buses. We have a Cummins 8.3 mated to a 3060 on the yard made in 1991, they ran much earlier than 98 but I still have a hard time finding their release date. Thanks for watching!!
I Just replaced my 545 with a refurbished one.
How much did it cost?🤑
Terrible background noise .
I have a AT 545 and I drove it for around 500 miles and the transmission never heated up on the highway. The engine is a 7.3 PS Navistar wirh a ECM. The bus was slow in traffic but not a problem. I don't know whether my AT 545 is computer controlled or not, I assumed it is.
Yes, we are only 100 yards off the interstate. Very thankful not to be around this constant noise anymore.
The AT545 is not electronically controlled, if you happen to have not watched the whole video.
Does the at545 or mt643 have park
Not in my experiences
Hello, I've got a military truck with Cummins 5.9, 6BT, 12V.. Please suggest a suitable transmission for the same. Thank you
A military Truck huh!
You should def put an Eaton 13speed. You should have all the room in the world between the frame rails
If you’re motor is rated @180hp like most buses & medium duty applications I would seriously consider pumping up the HP.
I have one here in Alice, Tx and two others in Houston Tx.
If a manual isn’t something you want to deal with maybe the HT740, it’s fully mechanical and used for heavy duty application. Moral of the story, go HD instead of medium duty.
Okay, question..
Why not convert to a manual transmission?
Hi, that is exactly what we did…….
But as for others, I did mention the pros & cons of a manual transmission, no?
I have an Allison 2000 in my bus and I'm being told that it is only a 4-speed transmission and that there is no fifth gear to unlock I only hear it change gears 4 different times well while driving so I'm not sure
Hey buddy! It’s my understanding that the Allison 2000 didn’t go into service until the year 2000. If you only have 4 gears it is not it, the Allison 2000 has 5 gears with a potential to unlock 6th. You will have the At545 or the MT643 most likely
Iam going by what the MC told me hold on I'll get some numbers for you
where is the place that sells frame cuts in oh
I found them on eBay. Since things didn’t go thru I didn’t hold onto their contact info, but apparently he’s well known. He sells lots of motors & trannies, apparently he was featured on cable TV.
@@parishskoolie oh wow. Im near oh was curious for the future thanks for the info
Hey guys how many oil gallons need trat transmission thansk
Hello there, our transmission took about 2.3-2.5 gallons. You can also search your specific model to get a more accurate number.
Really great video on transmission types for ur busses. MT643 will be my choice replacement when the time comes. Do you have a recommendation for a really good transmission cooler?
take care
John A
60107.
Thanks for watching buddy!
I was all over eBay looking for a cooler, I ended up with a smaller one. (We have a video up on the one I chose). It did in fact drop my temp about 10-15 degrees while under load. We have a handful of MT643s allaying around if you are near south Texas. I probably wouldn’t buy the same tranny cooler again. Whatever type you get, it needs 10AN fitting style attachments. Anything you get with those will be HD. Good luck!
I have a 97 freightliner how would it have an Allison 2000
You don’t. Allison 2000 started in the year 99.5-2000. Only exception is if someone has swapped it already
Must have been changed by the school system because neither the engine or transmission numbers are the ones that come with my bus originally so 🤔 🤷 😕 I have the A2000 and thinking about putting a manual in my bus ,trying to talk my Mc into it we will see what happens this year with fuel prices going like this going to have to do something to get better speed and MPG
@@johnlange2573 That would be sweet if the school system did the swap already! If you do have the Allison 2000 your speed & RPM should be good, unless you have tiny tires. After doing my manual swap I am not happy with 2400RPM @ 55mph. My new fifth gear is a 1:1 ratio which is the same as my 545 was in 4th!
My calculations & research leads me to believe if I upgraded to 11R22.5 from my current 10R22.5 I will get 350+ RPM drop @55mph. My .2 cents
@@parishskoolie sounds to me like you need to install a two-speed differential and learn how to split some gears.
Say 4:30 over 5:18 would be sweet two speed gearing for your tire size
@@crazywayne7051 BRO. I seen a two speed rear end for the first time scrapping this summer. I went back after the end of the day to save it from death (it was already loaded). Once I got it disconnected & tried to pull it out with equipment i snapped it:(
I'm going to try the bigger tires first. I have 4.63 gears in the rear & have a 4.33 that cam out of the donor.