4cyltoy Posted September 30, 2014 Share Posted September 30, 2014 Will a 2002 wrangler drivetrain (nv3550 & np231) bolt to a 1989 comanche? Both are 4.0l's. (Converting 89 to 4wd) I have a 2002 donor wrangler so i have access to all parts (axle, driveshafts, bellhousing, etc.) I tried searching but get confused with all the different years that will and won't work, or what i need for certain years.. Thanks, Kody Link to comment Share on other sites More sharing options...
thejim42 Posted September 30, 2014 Share Posted September 30, 2014 Should all work. Only thing idk about is the cross member and the CPs on the bellhousing Link to comment Share on other sites More sharing options...
md87 Posted September 30, 2014 Share Posted September 30, 2014 I believe the transfer cases on Wranglers are clocked a bit differently so there may be clearance issues. Link to comment Share on other sites More sharing options...
Dadinator Posted September 30, 2014 Share Posted September 30, 2014 The clocking on the xfer case will be different. I believe. Will work, but it will be different. Not sure if you lose ground clearance or if it gets up in the floor some. Link to comment Share on other sites More sharing options...
Dadinator Posted September 30, 2014 Share Posted September 30, 2014 Guess I was too slow. :thumbsup: Link to comment Share on other sites More sharing options...
johnr Posted September 30, 2014 Share Posted September 30, 2014 I took a trany and t-case out of a 94 wrangler and the t-case was clocked differently. I needed to take the tail piece off the mj original trany and put it on the 94 to get the clearance needed on the drivers side Link to comment Share on other sites More sharing options...
4cyltoy Posted September 30, 2014 Author Share Posted September 30, 2014 What are CP's? Link to comment Share on other sites More sharing options...
FrankTheDog Posted September 30, 2014 Share Posted September 30, 2014 Crankshaft Posidtion sensor. The pilot bearing in the end of the crank will be the wrong size. 1992 and up has a larger pilot shaft. Link to comment Share on other sites More sharing options...
4cyltoy Posted September 30, 2014 Author Share Posted September 30, 2014 :thumbsup: I was also told that the wiring harness (tcu I guess?) would not work between the two. Sounds like finding a pre 1996 Xj as a donor will be the best scenario... Link to comment Share on other sites More sharing options...
4cyltoy Posted October 1, 2014 Author Share Posted October 1, 2014 Anybody have any write ups for 2wd to 4wd swap? Link to comment Share on other sites More sharing options...
Blue XJ Posted October 2, 2014 Share Posted October 2, 2014 Crankshaft Posidtion sensor. The pilot bearing in the end of the crank will be the wrong size. 1992 and up has a larger pilot shaft. If he is using the engine and trans from the Wrangler, the pilot bearing will be correct, since they work together now. The crank sensor will be incorrect, as will the flywheel. I did more or less the same swap, (HO motor and trans into a Renix Jeep) You need the Renix flywheel and crank sensor installed for it to function correctly, assuming you are keep the wiring and computer from the 1988. If you are swapping the wiring and computer as well, then you can just use everything as it came out of the 2002. Link to comment Share on other sites More sharing options...
4cyltoy Posted October 2, 2014 Author Share Posted October 2, 2014 Well ive done some research and I think I found what I need locally. 1990's xj AX-15 (smaller input shaft) with the np231 and a hp30. I think I'm going to stick with the internal slave for now to get me through winter, and then switch the bellhousing to accommodate an external. Glad I found this because it should be a basic swap plug and play. Sound about right? Link to comment Share on other sites More sharing options...
Blue XJ Posted October 2, 2014 Share Posted October 2, 2014 As long as it's a 90 you should be able to plug and play. If it's a 91+ they use different electronics on them, so it could be a little more involved. You'd still need the flywheel and crank sensor from the 87-90 vintage, but the rest would work, I was able to adapt the Renix (87-90) throttle position sensor to work with the HO (91+) thorttle body. Mine has a 95 4.0, 98 AX15, 90 NP231 with 99 Axles, using the stock wiring harness. Link to comment Share on other sites More sharing options...
4cyltoy Posted October 2, 2014 Author Share Posted October 2, 2014 So i will need the flywheel and crank sensor from the 90 xj (ax15). If it is a 91+ will i need the tcu? Link to comment Share on other sites More sharing options...
Blue XJ Posted October 3, 2014 Share Posted October 3, 2014 If its a manual you are the trans controller, the Jeep doesn't have one unless its an auto. Link to comment Share on other sites More sharing options...
Steven Gregory 89 MJ Posted October 7, 2014 Share Posted October 7, 2014 Just put the whole drivetrain in the MJ Link to comment Share on other sites More sharing options...
Blue XJ Posted October 7, 2014 Share Posted October 7, 2014 Just put the whole drivetrain in the MJ That's what he is asking, it won't work if he swaps the whole drivetrain in. It needs to have the parts that work with his year electronics. Unless he is swapping harnesses too. Link to comment Share on other sites More sharing options...
Steven Gregory 89 MJ Posted October 9, 2014 Share Posted October 9, 2014 Just put the whole drivetrain in the MJ That's what he is asking, it won't work if he swaps the whole drivetrain in. It needs to have the parts that work with his year electronics. Unless he is swapping harnesses too. Ahh gotcha Link to comment Share on other sites More sharing options...
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