I am looking for a NP242 to put in place of a 231 for the '97 XJ powertrain swap into my '89 Grand Wagoneer. I have owned a few XJ's and love the reliability of the 4.0/AW4 and the full time option the GW originally came with but the 229 will need a spacer made to bolt it to the AW4 due to the 229's integral input shaft housing and input shaft length.
1)What are the differences in the 242's through the years? I know they went to 23 spline in '90-'91.
2)Are they all basically the same as long as it was bolted to an AW4 or are there certain years to avoid?
3)Do they have a bunch of different input shaft lengths like the 231's or again does it not matter as long as it was bolted to an AW4?
Thanks
1)What are the differences in the 242's through the years? I know they went to 23 spline in '90-'91.
2)Are they all basically the same as long as it was bolted to an AW4 or are there certain years to avoid?
3)Do they have a bunch of different input shaft lengths like the 231's or again does it not matter as long as it was bolted to an AW4?
Thanks
