Jeep Comanche MJ Specifications
<---This page last updated on 5-18-99--->
In this section I have put a brief listing of some info that I found on the Comanche. Most of this material was recieved from the XJ Files on offroad.com. If I find more info on the Jeep MJ then I will put it on this page as well.
Engine
The MJ came with the AMC 2.5L I4 150 cu.in. engine standard and the GM 2.8L V6 173 cu.in. optionally in '86. Also optionally in '86 was a 4cyl. 126 cu.in. turbocharged, Renault-made Diesel. The AMC 4.0L I6 243 cu.in. was introduced in 1987. Horsepower for the 4.0L in '87 was 150, '88-'90 was 177, and '91 was 190.
Transmission
The AX-5 and BA 10/5 were used with the I4 and the V6 used only the AX-5. The BA 10/5 was discontinued in 1989 and the AX-15 was used with the 4.0L I6. The gear ratios for these transmissions are as follows..
| | 1st | 2nd | 3rd | 4th | 5th | Rev |
|---|
| AX-5 | 3.93 | 2.33 | 1.45 | 1.00 | 0.85 | 4.74 |
|---|
| BA 10/5 | 3.39 | 2.33 | 1.44 | 1.00 | 0.79 | N/A |
|---|
| AX-15 | 3.83 | 2.33 | 1.44 | 1.00 | 0.79 | 4.22 |
|---|
Information on automatic transmissions are not listed as of yet.
Transfer Case
The NP-207 was used until 1987, after it the NP-231 was used. The NP-207 and NP-231 are the Command-Trac transfer cases. The other transfer cases are not listed at this time.
Front Axle
The Dana 30 was used as the front axle in the MJ. Stock gear ratio for the Dana 30 was 3.55 with 4.11 being optional.
Rear Axle
The Dana 35c is the axle most commonly found in the rear of the MJ. Stock gear ratio for the Dana 35 was also 3.55 with 4.11 being optional. The Dana 44 was optional in some models with the "metric ton" package.
Production Information
Jeep Comanche MJ 1986-92 190,446
