For 1997-2006 Jeep TJ's and Unlimited's. The only bump stop on the market that incorporates coil spring retainers. The bump stops extend stop impact point for proper contact. They are made with quality polyurethane components and aluminum spacers. The bump stop mount inside the front and rear coil springs and have 'poly' spacers top and bottom. This is a kit for the rearend of the vehicle only.