1" billet aluminum spacer blocks for your WJ rear sway bar. These spacers allow you to run your stock sway bar or a heavyduty rear sway bar in conjunction with an aftermarket heavy duty differential cover without clearance issues. These spacersdo not hinder rear sway bar performance. Insteadthey allow the sway bar to move freely without coming into contactwith your diff cover. Get a pair today and get rid of the unwanted clunks and flex restriction.