Borg-Warner T-90

The Borg-Warner T-90 is a three-speed manual gearbox manufactured by Borg-Warner. It was used in most Willys and Kaiser-Jeep models from 1945 to 1971, as well as a number of International Harvester models. It is an improved version of the T-84 used in WWII Willys MB and Ford GPW military Jeeps. It was constructed with an iron case in both top-shift and side-shift variants. The gears are spur cut with only 2nd and 3rd gears synchronized.

T-90A
The T-90A was used in Jeep models equipped with a four-cylinder engine.

Applications:
 * 1945-49 CJ-2A
 * 1949-53 CJ-3A
 * 1953-62 CJ-3B
 * 1946-50 463 Wagon
 * 1947-50 2T/4T
 * 1950-62 473/475 4x4
 * 1950-62 473/475-4WD
 * 1956-65 FC-150
 * 1957-65 FC-170
 * 1961-65 FJ-3/3A

Ratios: 1st..........2.798 2nd..........1.551 3rd..........1.000 Reverse......3.798

T-90C
The T-90C is essentially a T-90A with a 3.339:1 first gear.

Applications:
 * 1963-68 CJ-3B
 * 1963-71 CJ-5
 * 1963-71 CJ-6
 * 1963-65 475-4WD Truck
 * 1963-65 475 4x4 Wagon

Ratios: 1st..........3.339 2nd..........1.851 3rd..........1.000 Reverse......4.531

T-90J
The T-90J variant was used in six-cylinder models.

Applications:
 * 1952-55 685 Wagon
 * 1954-62 6-226 Truck
 * 1954-62 6-226 Wagon
 * 1957-65 FC-170
 * 1963-65 6-230 Truck
 * 1963-65 6-230 Wagon
 * 1963-?? Gladiator
 * 1963-?? Wagoneer