Transmission Main Drive Gear (4-134) For 1946-1971 Jeep & Willys with T-90 Transmission
Call Mike @Kaiserwillys.com for details at TOLL FREE 1-888-648-4923 (Mon-Fri, 9AM-5PM EST).
New Transmission Main Drive Gear (1 required per vehicle) – Part#: 640428
Q: Is this main drive gear for a T90A or a T90C or do you have it for both?
- A: T90A. Really just match to your motor.
Q: I have a 57 CJ-5 with a T90 transmission. The engine is a 1985 chevy six. The engine was in it when I bought it and the input shaft in the trans need replaced. Is the chevy clutch disc going to work on a T90 input shaft ? I have no clue what shaft is in it now.
- A: It depends if they have used a adapter or were able to use the original main drive gear. You’ll have to take some measurements.
Q: Can the main drive gear (T90) (4-134) fit the MB Jeep that I have? Or better still, will the entire T90 transmission assembly fit the MB engine that I have? Or does it require certain modifications to allow entire T90 assembly to fit the spline?
- A: You have a T-84 transmission in that 41-45 MB. A T90 will fit but you will have to cut out your floor board a little to accommodate the taller top shifter.
Q: My current one has 18 teeth, how many does this one have? (1958 CJ-3B, F-134)
- A: This will be the proper one for all T90 transmissions.
Q: I have a 1954 M38A1 which I thought had all original parts. I did some maintenance on the transmission which is a T90 and found the main drive had 14 gears instead of 18. The cluster gears also matched with it (forgot the count). All the rest of the transmission parts and case matched the T90. This got me worried because I do not know which vehicle this is for and where can I buy a replacement, in case it goes bad.
- A: We can get you all the original parts so you should be all set in case anything ever breaks.
Q: What is the overall length on this drive gear?
- A: They are 9-1/16″ like original.
*EMAIL or call Mike Toll Free (1-888-648-4923) Mon-Fri, 9am-5pm EST if you have any questions about this part or restoring your Willys.