did you get the RE control arms? looks like the control arms are too short pulling the axle back.
what's the life been like for the cherokee's unibody? ive got one bump tower bent forward just like that(same kit), maybe youve bent both?
hydraulic bumpstops would be the fix!
but when I did the drop brackets it all came back in line.
if your coil is in a straight line but tilting forward then both control arms are too long. If its bowed to the back, then your UCA's are too long, and if it is bowed to the front then your LCA's are adjusted too short.
^^that chart will give you perfect caster but horrible pinion angle