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View Full Version : 4.0 years..?


go4wheeling
September 25th, 2006, 09:47
I need a new motor for my cherokee and I can get one that is a 91 with low miles but mine is an 89. Is there much of a difference between the 89 and the 91 4.0 motor? Is is going to be a pain to swap?

88XJSport
September 25th, 2006, 09:56
The computer systems changed for the 91 model year. So 87-90 are compatible, and 91+ are compatible. If you were to cross these lines, it will be a pain, but i think it is doable....

MogifiedXJ
September 25th, 2006, 10:03
I have a few posts in these threads about converting from the renix to the later year(s) HOs

http://www.naxja.org/forum/showthread.php?t=98089&highlight=ho+swap

http://www.naxja.org/forum/showthread.php?t=84331&highlight=ho+swap

http://www.naxja.org/forum/showthread.php?t=92222&highlight=swap