jeepman 87 Posted January 26, 2012 Share Posted January 26, 2012 Can I put a 2000 tranny behind my 89 4.0 without changing everything or are the computers different Link to comment Share on other sites More sharing options...
jeepman 87 Posted January 26, 2012 Author Share Posted January 26, 2012 Forgot it's an 89 mj 4.0 2wd right now on it's way to 4wd and it's an auto aw4 Link to comment Share on other sites More sharing options...
jeepman 87 Posted January 29, 2012 Author Share Posted January 29, 2012 Is there anybody out there Link to comment Share on other sites More sharing options...
mvusse Posted January 29, 2012 Share Posted January 29, 2012 88 uses a separate TCU, whereas I believe in 2000 it is incorporated into the ECU. The 2000 transmission has more sensors that the 88 computer does not need, and the wiring harness is different. If you can adapt the harness, I see no reason why it should not work, but can't guarantee it. Link to comment Share on other sites More sharing options...
carnuck Posted March 8, 2012 Share Posted March 8, 2012 Switch the sensors you need to the new trans. AFAIK, they should all work (I put a '98ish one in mine) Just make sure you have the right tcase for the trans. The swirled the splines right about then. Link to comment Share on other sites More sharing options...
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