Jeepcom23 Posted July 18, 2009 Share Posted July 18, 2009 QUICK! Anyone know if an 89 4.0 Auto trans and transfer case work on my 91? here is the ad. http://chattanooga.craigslist.org/pts/1275812430.html THANKS GUYS! Link to comment Share on other sites More sharing options...
Automan2164 Posted July 18, 2009 Share Posted July 18, 2009 The trans and t-case yes, engine I don't think so. You have an HO, thats a Renix. Rob L. Link to comment Share on other sites More sharing options...
Jeepcom23 Posted July 18, 2009 Author Share Posted July 18, 2009 The trans and t-case yes, engine I don't think so. You have an HO, thats a Renix. Rob L. So I could or couldnt use that trans and t case? Sorry if I seem a little ignorant, I just really don't know lol. Thanks! Link to comment Share on other sites More sharing options...
Automan2164 Posted July 18, 2009 Share Posted July 18, 2009 I believe you CAN use the trans and t-case. Someone back me up? Rob L. Link to comment Share on other sites More sharing options...
Jeepcom23 Posted July 18, 2009 Author Share Posted July 18, 2009 lol, I'm just trying to make it 4wd. Plus I might do a chrome front end if the parts look good. If not Ill just part it out. Thanks. Link to comment Share on other sites More sharing options...
Eagle Posted July 18, 2009 Share Posted July 18, 2009 Yes you can use the transmission and transfer case. You will have to use the flex plate and CPS that came in your vehicle, because the teeth are different between the Renix and HO flex plates, and the CPS is a different type. Link to comment Share on other sites More sharing options...
TrailReadyMJ Posted July 18, 2009 Share Posted July 18, 2009 Yes, you can use the trans AND t-case from the 89, However, you will need to use the flex plate for the 91. The CPS between the renix and HO engines are different, and it will send the wrong signal to the ECU to fire the injectors. The only difference in the trans itself is in the output shaft, but if you have a matching case, you're good to go. The only other thing is the 89 may have a vacume switch on it for the front disconnect axle, but just ignore it and you'll be fine ;) (eagle beat me to it...lol) Link to comment Share on other sites More sharing options...
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