RockJock front upper bump stop kit for JL Wrangler and JT Gladiator EcoDiesel models repositions the upper bump stop lower to guarantee contact in high‑articulation situations where axle rotation can miss the factory upper pad. The kit retains the factory yellow jounce bumpers by relocating them into the new aluminum RockJock bodies for a factory‑like feel on contact. Components are clear‑anodized aluminum with zinc‑plated spacers and bolts for corrosion resistance.
RockJock JL/JT Diesel Rubicon Upper Bump Stops