Rock Krawler Stage 1 RRD shocks are available as part of the 2021–present Jeep Wrangler JLU 4-door (4XE) 4.5in X Factor system. These Stage 1 shock units are specified to match the X Factor long-arm geometry and lift height, forming the initial damping stage intended for JLU 4-door vehicles running the 4.5in X Factor setup.
Rock Krawler 2021+ Jeep Wrangler JLU 4DR (4XE) 4.5in X Factor System - Stage 1