T-86¶

The T-86 is a 3 speed transmission with a casting number of T86 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-86 case and other parts are interchangeable with with the T-90.
The T-86 uses a factory transmission to bell housing adapter. The adapter has the standard Chevy transmission bolt pattern and it bolts to Chevy, Buick, Pontiac, etc. bell housings. These bell housings are the same on the transmission side. There are more pictures of a T-90 with this adapter on the T-90 and T-15 pages.
Usage¶
The T-86 was only used behind the "Dauntless" Buick V6 in in CJs and Jeepster Commandos during the late 60s.
| Transmission | 1st | 2nd | 3rd | 4th | 5th | Rev |
|---|---|---|---|---|---|---|
| T-86 | 2.798 | 1.687 | 1.00 | 3.798 |
