Rock Krawler JL X Factor lower control arms are made from 1.75 inch OD 0.313 inch wall DOM steel and have a durable black powder coat finish. The arms are bent to offer improved ground clearance for increased off-road ability. An adjustable 1.25 inch shank Pro-Krawler Joint at the frame offers a misalignment capability of 60 degrees and is both serviceable and rebuildable. The Pro-Flex joint at the frame side connection uses 70a Durometer Thermoelastomer raceways that offer greater vibration isolation. The Pro-Flex bushing has misalignment capability of 30 degrees. Giving the arm a total misalignment capability of 90 degrees. The Rock Krawler JL Lower Control Arm combines strength, durability and off-road ability making it one of the strongest adjustable arms on the market. This product ships in approximately 1 days