In this black 5/8 inch rear sway bar bushing kit, polyurethane based suspension, driveline and chassis components have been designed as an upgrade to the soft factory rubber components. Precision fabrication ensures a perfect fit. Holds super grease for quiet operation and provides necessary rigidity.. This black polyurethane rear sway bar bushing kit from Prothane fits 84-01 Jeep Cherokee XJ with a 5/8 inch sway bar diameter.