This results in a stiff, jouncy ride. Most YJ owners prefer to swap in a shackle-reversal kit such as this M.O.R.E. system. The completely bolt-on kit also adds an inch of lift and moves the front axle forward an inch to lessen tire contact with the fenderwell during flex. Along with the shackle reversal, you'll need a longer-travel slip-yoke for the front driveshaft.