The KSP Upper Control Arm is designed to fit Ford F150 and correct the ball joint angle for front leveling kits ranging from 2" to 4". These Upper Control Arms are made from solid Q235 Carbon Steel Plate, ensuring high strength through the use of a high-strength argon arc welding process. F150 Upper Control Arm is constructed from 1.25" DOM Tubing and MIG Welded, bring improved driving dynamics, handling characteristics, and suspension articulation. The Upper Control Arms from KSP feature POM ball joints, allowing for a greater range of motion and increased wheel articulation compared to standard or OE replacements.