Hi, I need an NP231 from my 92 YJ with an AX15 4.0L completly stock? There is a 92 Xj with an AW4 4.0L with a np321 in my local yard. The guy said he will give me the T-case for 100 bucks. My question is, will it bolt right in? I know I need a 23 spline, and that XJs after 1900 are 23 spline correct? Any difference between the auto and manual? Will the bolt patten in the gearbox be completly the same? Heres the photo of the the 100$ tcase. Thanks in advance for your help guys.

 

The bolt pattern on the YJ version of the transfer case is clocked a little clockwise,15-degrees I think? So that XJ 231 will bolt up but the drivers side will hang lower if installed in a YJ

 

Lawson is correct on the clocking, if you are able you can redrill to match the clocking. I have done it moving a yj to case to a xj.

 

Ah I understand, it will hang low and i wont be able to get the skid plate on, thanks for your help guys. I dont think ill redrill, knowing myself it wont end well, will look for a YJ Tcase

 

ive never seen an XJ from that era.... plz share pictures if you have them!

 

I've seen plenty from the 1900's. The XJs from the 2000s all had problems with their heads cracking. :}

 

The ones I've seen from the 1900s are horse drawn.