A complete XJ 4.5 lift needs coils, leaf springs, control arms, a track bar, shocks and brake lines. See the parts, axle limits and tire sizes.
Traction Bars vs Ladder Bars: Stopping Axle Wrap
Traction bars vs ladder bars: what axle wrap is, how each design stops it, Pro Comp, Fabtech and Tuff Country fitment, alternatives and install checks.