Built for strength performance and increased travel these upper control arms are ready to bolt-in with most leveled/lifted trucks. They use 1.5" OD x .120-wall tubular construction with an indexed ball joint cup to correct the ball joint positioning allowing additional down travel and camber adjustment. At the frame mounting ends are durometer-specific rubber bushings for maintenance-free operation while at the other end a quality FK uniball joints to create maximum travel. Arms are finished in a durable black powder coat with a billet aluminum dust cap ready for installation right out of the box.