Post by
Desert Rat »
https://forums.nicoclub.com/desert-rat-u54558.html
Tue Oct 20, 2009 3:53 am
The 4x4 IFS won't simply bolt up - the frames are different in the front and all suspension hangers will need to be fabricated. It has to be done just exactly perfect if you expect it to live and to be able to be aligned properly. It's going to require significant fab work. If you're hell bent on a 4x4, take the transmission and Tcase from the donor truck, and source an '80-91 fullsize Grand Wagoneer Dana 44 front axle and fab a front spring hanger and shackle mounts and do a solid axle swap at the same time.
Or just build the 4x4 donor truck up.