Rock Krawler’s Stage 1 RRD shock option for 2020+ Jeep Wrangler JLU 4-door diesel models is part of the 3.5-inch X Factor (No Limits) system, tuned to work within that lift package. These shocks are specified as the Stage 1 element of the system to provide damping matched to the X Factor geometry for owners using the listed 3.5in setup on JLU 4DR diesel Wranglers.
Rock Krawler 2020+ Jeep Wrangler JLU 4DR (Diesel) 3.5in X Factor (No Limits) System - Stage 1