The Rock Krawler RRD shocks listed for 2018+ Jeep Wrangler JLU 4DR are Stage 1 units within the 2.5-inch X Factor Pro aluminum system. Intended as part of Rock Krawler’s staged shock offering for JLU 4-door applications, these Stage 1 shocks are identified as the entry component for that aluminum X Factor Pro setup and are specified for the 2018-and-newer JLU 4DR chassis.
Rock Krawler 2018+ Jeep Wrangler JLU 4DR 2.5in X Factor Pro Aluminum System - Stage 1