The Rock Krawler RRD shock is specified for 2021+ Jeep Wrangler JLU 4-door (392) within the 3.5in X Factor Pro Aluminum System - Stage 1. This lists the shock as the Stage 1 unit designed for Rock Krawler's aluminum X Factor Pro 3.5in package on 2021+ Wrangler 392 models, clarifying intended fitment for installers working on that system.
Rock Krawler 2021+ Jeep Wrangler JLU 4DR (392) 3.5in X Factor Pro (No Limits) AL. System - Stage 1