Jeep Transmissions: T-90
The T-90 is a 3 speed transmission with
a casting number of T90 and a 1 1/8" 10
spline input shaft. Length of input shaft varies with
application. Output is 1 3/8" 6 spline. The T-90s used
in 1945 and some of 1946 where column shift. Later versions
were floor shift like in the picture.
Drivers side view of T-90 with Chevy adapter. This adapter is the
factory adapter that was used with the T-86 and Dauntless Buick
225 V6 engine. Most likely, the transmission is a T-90 case that
has been rebuilt with T-86 internals. Many parts interchange
between the transmissions.
This T-90 is out of a '50 CJ-3A. This is a typical aftermarket
Chevy adapter. This adapter and the adapter above bolt to standard
bell housings used in Chevy, Olds, Buick, Pontiac, etc. The bell
housings used in these vehicles is the same on the transmission side.
The T-90 was used in CJs from 1945 to 1971. It was also the
standard 3 speed in the Willys Wagon, Willys Pickup, M38, M38A1,
FC trucks, and Jeepster/Commandos during this time period. The
only variation are the T-86 and T-14 used behind Jeeps equipped
with the "Dauntless" Buick V6.
|Transmission ||1st ||2nd ||3rd ||4th ||5th ||Rev |
|T-90 (CJ version)||2.98 ||1.66 ||1.00 || || ||N/A |
|T-90 (PU version)||3.44 ||1.85 ||1.00 || || ||N/A |
|T-90-J ||2.798||1.551 ||1.00 || || ||3.798 |
Last modified Wednesday, 01-Dec-2010 09:17:31 MST
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