I've looked all over the web and keep getting contradictory information. I've found several forums/sites that say it has same bolt pattern, and others said it changed in 84. I was just given an 85 Cherokee 2.5 with a hole in a piston, and have a 350 itching for a home. I've heard it's on the weak side and I can beef up the tranny but at the moment I just want to get it mobile.