Product General Motors fit three different OEM upper control arms to these trucks. A stamped steel arm, an aluminum alloy arm, and a forged steel arm. This kit (TRC6651) replaces the forged steel OEM upper control arms. In the product images there is a sample to help identify which OEM arms are currently on your truck. SuperPro's fixed offset geometry correcting upper control arm kits dial in your lifted truck without time-consuming adjustments or trial and error. Our front upper control arms are designed with ideal camber and caster adjustment built into the design of the arms so they are a direct bolt-on solution for your 2"-3" lift. Improved drivability - enhanced steering feel and accuracy, greater straight-line stability, proper turn-in and predictable cornering behavior and performance - straight out of the box. Paired with a heavy-duty high articulation ball joint for maximum durability on and off-road, these arms are built to deliver better-than-stock road manners on road and improved capability and ruggedness when the pavement ends. The SuperPro Fixed Offset Upper Control Arm is an all-in-one solution for any vehicle that has been lifted between 2" (50mm) and 3" (75mm). Providing an increase between 2.5 and 3.5 of caster and up to 1.5 of negative camber increase (figures quoted are based off a 2"/50mm Lift) along with greater clearance to the coil over strut and more articulation of the arm. Key Features ¢ Fixed offset alignment correction arms ¢ In-built camber and caster change to suit lifted vehicle ¢ Increased clearance between spring and Control Arm at full articulation ¢ Heavy Duty ball joint ¢ SuperPro Bushings

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