The Rock Krawler lower control arm is specified for 2021+ Jeep Wrangler JLU 4-door (392) in the 3.5in X Factor (No Limits) System. Offered as the correct control-arm component for that X Factor 3.5in system, the part description indicates it is intended to integrate with Rock Krawler's X Factor hardware on supported 2021+ Wrangler models.
Rock Krawler 2021+ Jeep Wrangler JLU 4DR (392) 3.5in X Factor (No Limits) System