Fits 07 18 Jeep Wrangler JK 4WD Front Upper+Lower Adjustable Control How to install a Rough Country Front or Rear Lower Adjustable Control How to install a Rough Country Front or Rear Lower Adjustable Control Johnny Joint Control Arm Set 07 18 Wrangler JK Complete Set Of 8 RockJ Rough Country Jeep Wrangler Front Rear Lower Fixed Control Arms for 4 Amazon.com: Adjustable Control Arms for 2007 2018 Jeep Wrangler JK. With their ball in joint, massive 2. 5in diameter body, and huge 1. 25in threads, these X Flex Joints offer considerable range, strength, and safety for off road applications. Upper Arm X Flex Joints pivot up to twenty degrees, while Lower Arm Joints are capable of a staggering thrity five degrees pivot range. Features: Fully greasable. Upper joints pivot up to 20 degrees. Lower joints pivot up to 35 degrees. Allows for greater articulation off road. Details: Sold As Each Doors 2 Door 4 Door Drive 2WD 4WD Mount Style Bolt On