I have a 94 cherokee with a 6.5" LA lift and I'm swapping in a set of waggy axles and I don't know what a good pinion angle would be, since I'm going from a HP axle to a LP axle. Also the axle I have didn't come with calipers, should I order the factory waggy calipers or are there better ones that will work. Sorry if these question get asked a lot, but I have searched, I just can't find a definitive answer. I'm still pretty knew to the 4x4 world but I'm not knew to fab work

for ease i would just put the factory calipers on it. should work fine. typically set the pinion angle about 3 to 5 degrees low so that way when torque is applied the axle rotates up.

You'll have to take measurements on the rear to set the pinion down a degree or two from pointing right at the CV cluster (you do have a CV rear driveshaft?).

For the front, I'd be more concerned with setting the caster angle properly. Since it's a high pinion, the driveline angle shouldn't be an issue, but you'll need to set the caster to about 7-degrees positive to have proper road manners.