RSO Suspension Rear Lower Control Arms 0-6in Lift for Wrangler JK/JKU The RSO Suspension 0 to 6 inch Adjustable Control Arms will improve the suspension performance on your Wrangler JK/JKU. CNC formed DOM tubular steel provides exceptional strength and durability well beyond OEM parts. Forged ball-and-socket joints use high misalignment balls and rubber isolators to provide higher angularity while reducing noise and vibration, with a steel jam nut for ultimate strength and tunability you can rest assured your settings are locked in even through the roughest terrain. Fully adjustable to reposition your axle, increase articulation and correct your suspension geometry. Using high quality factory style rubber bushings and internal rotating bearings reduces friction and road vibrations for quiet, low maintenance operation. The arms are fully rebuildable and greasable with zirk fittings ensuring years of trouble free performance for the life of your offroad rig. RSO Suspension Adjustable Control Arms give smooth operation and range of motion releasing your suspensions full capabilities. Direct bolt on installation and vehicle specific fitments to ensure no modifications needed. Backed by a limited lifetime manufacturer warranty on workmanship/structure, 5 years on the components, and 1 year on the finish/coating. Fits stock height up to 6 inch lift kits. Adjustable arm design provides proper positioning of axle housing and the jam nuts lock in your settings even in the roughest terrain CNC formed DOM tubular steel provides exceptional strength and durability well beyond OEM parts. Forged ball-and-socket joints use high misalignment balls and rubber isolators to provide higher angularity while reducing noise and vibration Fully adjustable to reposition your axle, increase articulation and correct your suspension geometry. High quality factory style rubber bushings and internal rotating bearings reduce friction and road noise The control arms are fully rebuildable and greasable with zirk fittings ensuring years of trouble free performance for the life of your offroad rig. They give smooth operation and range of motion releasing your suspensions full capabilities Direct bolt on installation and vehicle specific fitments to ensure no modifications needed. Backed by a limited lifetime manufacturer warranty on workmanship/structure, 5 years on the components, and 1 year on the finish/coating