They may have to be modified and plugged as appropriate.
The M38 and M38A1 Jeeps have basically the same T90 3 speed transmission as CJ’s but they have two plugs that screw into the front of the shifter cover rail bores that protrude far enough to hit the back face of some conversion applications.
#Dynamark 3 speed transaxle driver
The T90 features a conventional “H” shift pattern, with reverse being towards the driver and up. The column shift T90J can be easily converted from column (or “transmission side shift”) to floor shift (“top shift”) by installing a floor shift top cover assembly. These gears do interchange perfectly well. Models afterwards were produced with 15 teeth reverse idler gears. T90’s were produced with 16 tooth reverse idler gears up to 1965. The cluster gear has a 33 tooth driven gear, resulting in a 2.79:1 first gear and a 1.66:1 second gear. The T90J has an 18 tooth, helically cut input gear. They had an ~9-1/4″ input shaft (stick-out length) with a 10 x 1-1/8″ splines and a neoprene-sealed front bearing retainer assembly. These were either column or floor shift models. The T90J was used with the six-cylinder trucks from 1952 to 1965. The cluster gear has a 35 tooth driven gear, resulting in a 3.34:1 first gear and a 1.85:1 second gear. The T90C has a 16 tooth, helically cut input gear. Since the T90C uses a case marked “T90A”, you will need assurance that the transmission in question came from a post-’62 Jeep, or you will need to pull the top cover and count teeth. It features top shifters, a 7″ input shaft (stick-out length) with 15/16″ x 10 splines and a felt-sealed front bearing retainer assembly. The T90 used from 1963 to 1971 with the F-head four-cylinder engine is designated as the T90C. The cluster gear has a 33 tooth driven gear, resulting in a 2.79:1 first gear and a 1.55:1 second gear. The input shaft has an 18 tooth, helically cut input gear. These versions all feature top shifters, a 7″ input shaft (stick-out length) with 15/16″ x 10 splines and a felt-sealed front bearing retainer assembly. The T90 used from 1946 to 1962 with the L and F-head four-cylinder engines is designated as the T90A1. There are three major versions of the T90 to differentiate. Many parts interchange, however first & reverse gears are helically cut in the T86 in lieu of the spur cut gears in the T90. Jeeps also had a T86 transmission that appears similar to the T90. A 2wd version of the T90 does exist and was installed in some Jeeps but is a rarity. The case itself has a prominent bulge on the driver’s side with two protruding bosses as provisions for side-shifting actuators.Īll 4wd T90 transmissions have a 1-3/8″ x 6 spline output shaft for mounting the transfer case input gear. The T90 transmission is 9″ long and features a cast iron top cover that is retained by six bolts and a main case of cast iron. Note: Please CALL before completing your order to receive a shipping quote, verify vehicle info, confirm core details and deposit.The side-shift or column-shift version of the T90. Note: This transmission is not compatible with GMC and Chevy vehicles. Our advancements in build process and state-of-the-art upgrades bring you not only one of the most reliable ZF transmissions on the market but the most competitive sale price around. Here at Xtreme Performance we have entered the new era of transmission manufacturing and we are proud to say that the ZF 6-speed surmounts to be the pillar of our success. The ZF 6 Speed comes in two different models the S6-650 and S6-750. It can be found in Ford F250, F350, F450 Super Duty Pickups. The ZF 6 Speed's lightweight and mostly aluminum design was manufactured specifically with the Powerstroke engine in mind. ZF 6 Speed transmission super sale! This fully synchronized beast of a transmission was first introduced in 1998 and soon became more popular than its five-speed predecessor which halted its production in 2001.