T-15¶

T-15 front T-15 side T-15 back

The T-15 is a 3 speed transmission with a cast iron case. I has a casting number of T15 or 1307 and a 1 1/8" 10 spline input shaft. The T-15 has a 1 3/8" 6 spline output shaft. It has a reputation as the strongest of the 3 speeds.

T-15 top Top view of the T-15. T-15 passenger side The casting numbers on the T-15 are on the passenger side near the top back. T-15 vs. T-90 Here's a top view of a T-90 and a T-15. The T-90 has an adapter on the front for the Dauntless V6, the adapter was probably originally on a T-86. The front of each transmission is even to show how much longer the T-15 is compared to the T-90.

Usage¶

The T-15 was used only in V8 equipped CJs and Jeep trucks from 1972 to 1975.

Transmission	1st	2nd	3rd	4th	5th	Rev
T-15	3.00	1.83	1.00			3.00