The TeraFlex Progressive Bump Stop Kit for Jeep Wrangler JL and JLU models provides additional suspension protection and improved ride quality for vehicles running 0–4.5 inches of lift. These bump stops replace the factory foam units with performance-tuned progressive bump stops that help absorb large suspension impacts during compression. Constructed from high-density closed-cell microcellular polyurethane, the bump stops compress progressively to reduce harsh bottom-out impacts while protecting critical suspension components such as shocks, axle tubes, and fenders. The design is maintenance-free and installs directly into the factory bump stop locations for a simple upgrade. ✔ Designed for 0–4.5" lift systems✔ Progressive bump stop design reduces harsh bottom-outs✔ Durable closed-cell polyurethane construction✔ Protects shocks, axle housings, and suspension components✔ Direct replacement for factory bump stops