The XJ came with the AMC
2.5L I4 engine standard and the GM 2.8L V6 optionally until '86. The 4.0L
I6 was introduced in 1987.
Transmission
The AX-5 and BA 10/5
were used with the I4 and V6. The BA 10/5 was discontinued in 1989 and the
AX-15 was used with the 4.0L I6.
Information on automatic transmissions will be added later.
Transfer Case
The NP-207 was used
until 1987, after it the NP-231 (or NV for New Venture) was used.
The NP-207 and NP-231 are the Command-Trac transfer cases. The other
transfer cases will be added later.
Front Axle
The Dana 30 was used as
the front axle in the XJ.
Rear Axle
The Dana 35c is the axle
most commonly found in the rear of the XJ. The Dana 44 was optional in
some models with the towing package. The XJ also appears once in a while
with a Chrysler 8.25" rear end.