I have a 89 XJ Limited 4.0 And I need a new engine (Bad Rear Main, and a lot of blow by) I’d rather replace the engine than tear it down to replace the rear main plus it has 170K. Anyways I can get a rebuilt reman. Long block for 1024 with a 70/7 year warrantee or I can get a complete long block with all acc. for like 500 out of a 96 Grand Cherokee.
The question is how hard would it be to get this to work. The engine mounts the same to the frame, and tranny I assume? I know the 96 motor is a OBDII but I'm talking about using the stock 89 computer, are the sensor harnesses for example the throttle body and other sensors going to be the same, if not are they sliceable? Will this work and has anyone heard of such a thing? Any advice would be greatly appreciated