I've posted in the "wanted" section about a HP Dana 30 axle. A few questions, will a HP axle bolt right up to my 2000 Cherokee that currently has a LP axle? IF I find one, I DON'T want any suprises with fitment issues.
I've played around with the UCA's on mine Friday, and found my wandering problem is 95% caster angle, and 5% trackbar bushing. I had to put it back because of the pinion angle being off with my LP axle. I removed the 3/8" shims I had behind the LCA's and things are much better, not as good as with changing holes in the UCA's, but MUCH better.
I also replaced the bushing in the frame end of the trackbar, and that helped too. I also noticed when I went to loosen the mounting bolt, the nut was loose. The steering is much more solid now.