98 XJ 4.0/AX15 5 inch lift build
 

Ive got a 2 inch bb on now and plan on getting a 3 inch lift to add to it. I know i need extended brake lines, sye/driveshaft, control arms, adjustable trackbar, and shocks. Is there anything else i need? I have a few questions though. 1. Do i need new upper control arms? 2. Will a front xj driveshaft fit with my ax15? 3. Are shims a must have?

You will probably want ucas or your caster will be way off, no an xj shaft won't work with ax15 and sye I've heard 5.2 zj shafts might, you will need shims most likely

Ok thanks for the info. Would you happen to know the measurement for the caster with that much lift? If not do offroad shops that do alignments set the caster up?

For the front you just line up the pinion with the driveshaft I believe