The Rock Krawler coilover specified for 2020–present Jeep Wrangler (JLU) 4-door diesel models is intended for the Adventure‑X Pro Trail Runner 4.5in long arm suspension. As the coilover component of that Pro Trail Runner long-arm kit, it pairs with the Adventure‑X hardware to match the intended suspension travel and mounting used in that long-arm configuration.
Rock Krawler 2020+ Jeep Wrangler JLU 4DR 4.5in Adventure-X Pro Trail Runner Long Arm Suspension