mt643

Aghhhhh the AT545 gave up on us, well actually seems like the valve body took a crap as the shifting from 1 to 2 got hard and now judders. Any local Mechanics to Georgetown TX fancy a transmission swap? I have looked through some forums and it looks like I will either go with a straight swap for...

Hi I'm here looking at selling my 1996 International Thomas Bus $7500 OBO - Worst I can say is no. 1996 8 Windows I was told by the Colorado school district 167,000 Miles Before Gauge Cluster was replaced so current mileage shown is inaccurate it currently reads 1279 DT 466 3800 Engine...

I have just returned from our 1700 mile journey from New Mexico where I bought the bus. It is a 95 Thomas with rear engine, 8.3 mechanical with mt643. It has highway gears and cruised at 60-70 the whole way back but didn’t like the mountains of Tennessee, where it consistently did 40 uphill. It...

I have an allison mt643 automatic transmission for sale. It is a good running takeout from my 1985 ih/thomas bus ( i put a 10 speed manual truck transmission in my bus since i like manual transmissions). The transmission has cable modulator and was bolted to a international dt466 with sae 2...

Hello, Due to a change in job situation, I will not be able to complete my skoolie project; which has been admittedly stalled for quite some time. Sadly, I must sell her. She lives near Albuquerque, NM currently. The good: -DT466E ~200k miles (will update with exact number) runs...

Just bought a 2001 International 3800 Bluebird bus. It has a DT466E 7.6L and an MT643 Allison Automatic transmision. I am looking for a service manual for this vehicle. Also, would anyone be able to recommend a shop that will service this size vehicle in the Daytona, FL area? Any comments and...

I have delved deeply into why the Allison electric shift modulator used on the AT545 and MT643 are not dependable. My friend (Rob deserves a lot of credit) and I have come to three main reasons and theories for two of those reasons. Depending on the year of your bus, you may use the T444E...

I switched out my 5.11 rear diff for a 4.10 for lower RPMs at cruise (2K @ 60mph). I have not driven my bus much at all before doing this, so I'm not sure if it acted this way before the swap. Anyway, everything seems to work great except in one situation, that's when going up hill. It goes...

Hello all. I have searched high and low on the forum and the internet and cannot seem to find out the following info: Would a 1999 Chevy with a CV200 Bluebird body and a GMT530 chassis (also known as B7), containing a Chevy 7.4L Vortec 7400 gasoline engine, have an Allison AT545, or an MT643...

Hello, I have spent the last several months trying to come up with an answer on what bellhouse to use to get an MT643 into my GMC Topkick based bus chassis. A bit of history on it for reference. The chassis is a C5500 "bus not a school bus" chassis with a 215hp Cat 3116 and the AT545. I use...

So I'm having the speedometer issue after having my transmission upgraded (on a 5.9 12v) from an AT545 to a MT643. It's been quite an ordeal, but I'm (hopefully) down to the last couple issues.... The shop connected the sending unit of the 643 to my existing speedometer and now my speedometer...

Hey Skoolie Community! Creating this thread as a home for updates on our Skoolie conversion process. 4/22/2019 Milestone: We won the auction for our 1997 International 84 passenger bus and now our journey begins! Our current plan is to hit the ground running and get the bus converted to the...

Hello Skoolie Community! Thank you all for making such an awesome resource for us to use at Skoolie.net! We have been lurking for a while but have finally decided to make the jump and kick off our own Skoolie project. We are a family of 6 and we are currently bidding on a 1997 International 84...

Hello Skoolie Community! Thank you all for making such an awesome resource for us to use at Skoolie.net! We have been lurking for a while but have finally decided to make the jump and kick off our own Skoolie project. We are a family of 6 and we are currently bidding on a 1997 International 84...

I’m currently in NM headed west into a ~25 mph headwind. Every minute or so my rig goes into almost like a power reduction, slows me down to 40mph and then let’s me speed back up, and it cycles like this over and over, the gas pedal goes dead, not letting me accelerate out of it, almost like it...

Looking at picking up a bus this weekend. 2001 30ft flat nose dt466E with mt643 amtran. The odometer doesn’t work. They reprogrammed the govenor to 71 mph . Tires are excellent and no rust. Has about 230,000 miles on it according to them reading it off the ecm. Besides that I think I finally...

Hello everyone. I'm looking at a local 6 window bus that has a Navistar DTA360 engine and Allison MT643 4 speed transmission. It seems like people have a moderately favorable opinion of the transmission, but I'm not finding much here on the DTA360. What I have discovered is that this is a...

Hi all, This is my first time posting in here, so here goes nothing. Me and a few friends from college stumbled upon skoolies and decided to give it a shot and convert one for a national parks trip we plan to do after graduation. We looked for a bit and pulled the trigger on a '97 AmTram...

https://seattle.craigslist.org/sno/rvs/d/thomas-saf-liner-perfect-for/6366172361.html https://www.ebay.com/itm/322844329365 For sale, 1986 Thomas Saf-T-Liner School Bus, 40' rear engine diesel.. Retired in 2015 from the Arlington (WA) School District. $2500 OBO. I will consider all...

I've heard about not doing well going up long hills, so if anyone knows if this one would be any good, that would be great. Year: 2001 Chassis: International Body: BLUEBIRD Engine:T444E (industrial Version of the 7.3 Powerstroke) Miles:176,223 Transmission:Auto mt643 Brakes:Air Thanks

Well, we finally have our bus !!! She is a 1988 International S1800, Thomas bus with an MT643 Tranny, a DT466 Engine and an electric retarder. We picked her up four days ago from the school district we belong to. She was $1500 And apparently sha has pretty good "new" tires.