Mattloz

Hey guys I have a 1991 jeep Xj base that's 2wd with a engine that has 78,xxx miles. The other day I bought a 1990 jeep Xj 4x4 limited with a blown motor( rod bearings) I heard that the 1991 has chrystler electronics and the 1990 has some other one is that going to cause issues when I swap my engine (1991) to the 1990 jeep body I'm becoming a GM certified tech so I'm very hands on ( obviously) but what am I looking at I'm 19 and this is a project did I **** up with the 1990 jeep???

XJwonders

if u just swap the blocks and keep your Chrysler stuff, u ll be fine.

Mattloz

Thanks that's what I thought is there anywhere in the site where I can find wiring diagrams and vaccume diagram to redo the wire and vaccume

Nick-B

Here's all the info you'll need.
https://www.cherokeeforum.com/f51/cr...x-tips-153657/
Post #17 pertains to the engine swap.
Have fun and Welcome to the Forum!

cruiser54

Yup. Easy as pie.