The Bilstein B8 Control Arm kit (part number 51-322335) is a performance upgrade for lifted or leveled trucks, designed to correct suspension geometry and increase wheel travel. These heavy-duty upper control arms feature a corrected ball joint angle to prevent binding and improve alignment stability. The kit includes: 1x Front Left Upper Control Arm, 1x Front Right Upper Control Arm, heavy-duty greasable ball joints, and polyurethane bushings for enhanced durability. Engineered for vehicles with 1-3 inches of front lift. Components included: Left Arm (41-322315), Right Arm (41-322322).