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Rock Krawler upper control arms for 2021–present Jeep Wrangler (JLU) 4-door 392 applications are specified as part of the 3.5in Ultimate Adventure System to maintain steering geometry and axle alignment. These upper arms are intended to work with that Ultimate Adventure setup to help preserve handling and reduce suspension joint stress during demanding off-road use.
Rock Krawler 2021+ Jeep Wrangler JLU 4DR (392) 3.5in Ultimate Adventure System
