The Rock Krawler RRD shock is specified for 2021+ Jeep Wrangler JLU 4-door (392) in the X Factor X2 (No Limits) long arm suspension with a 4.5‑inch configuration. As the damping element for that long-arm kit, it is intended to match the X Factor X2 travel and tuning when installed alongside the kit's recommended components.
Rock Krawler 2021+ Jeep Wrangler JLU 4DR (392) 4.5in X Factor X2 (No Limits) Long Arm Suspension