ok guys, here is the problem. My wife has a 90 Cherokee Laredo with the np42-j. The tcase is gone. it slung apart. We are having problems finding a replacement. How or can i make a 231 tcase work? if so what all would i need to install the 231 tcase?

 

You must have a junk yard in Alabama, if nothing else, craigslist. I could be wrong but I believe the 231 has a different spline count than the 242.

 

yeah we have several junkyards but so far the only jeeps they have are 2wd or they have the 231 tcase

 

You can swap in a 231.. you just need to pull your current broken TC off to check input spline count.

It's going to be either 21 or 23 spline, you'll then need a suitable replacement as well as the shift bezel.

 

so putting in a 231 tcase would really be no different than putting in a replacement 242 tcase? as long as the splines are the same count i should be good right?