This Cognito billet aluminum upper control arm kit is designed to improve the overall performance of the 2019-2026 GM Silverado/Sierra 1500 pickup or 2021-2026 GM SUV with corrected front-end geometry, adjustable camber and caster, and improved suspension component clearance. These are constructed of CNC machined 6061 billet aluminum merging light weight with high strength properties. Replacing the OE ball joint with the available ICON Delta Joint allows for full bump and droop travel of the front suspension while eliminating bind. FK Rod End 7/8” Heim joints provide precise and smooth function throughout the range of travel while also allowing for camber and caster adjustment. Included with all components and hardware necessary for a complete install, these billet UCAs are the perfect upgrade for the 2019-2026 GM 1500 pickup truck or 2021-2026 GM SUV.. Cognito billet upper control arms feature 6061 aluminium construction, PTFE lined rodends, and Delta Joint, a hardcore high-angle ball joint that combines the durability of a ball joint with the performance of a traditional uniball.. TECH NOTE: Compatible with 0-3.5" of front lift over stock on most pickup submodels. Compatible with 0-1.5" of front lift over stock on Silverado 1500 Trail Boss and Sierra 1500 AT4 models.. TECH NOTE: Silverado 1500 and Sierra 1500 submodels equipped with Adaptive Ride Control also require concurrent installation of aftermarket front and rear shocks. TECH NOTE: Silverado 1500 and Sierra 1500 submodels equipped with Adaptive Ride Control also require part numbers 71021 and 71022. Recommended Aftermarket Tires (Silverado): 35"x12.50" (Minor fender trimming and modifications may be required). TECH NOTE: Will not fit SUV submodels equipped with Magnetic Ride Control and/or Adaptive Air Ride suspesnsion.. Recommended Aftermarket Tires (Sierra): 34"x12.00" (Minor fender trimming and modifications may be required). TECH NOTE: Trimming of the upper control arm stops required or down travel will be limited by upper arm stop. Recommended Aftermarket Tires (SUV): 33"x12.50" (Minor fender trimming and modifications may be required). CNC machined 6061 billet aluminum construction for light weight and exceptional strength. TECH NOTE: Compatible with 0-3.25" of front lift over stock on most GM SUV submodels.. Recommended Aftermarket Wheels: 17x8.5 with 4.75” Backspace / 0mm Offset. Cognito 19-26 Chevy Silverado/Sierra 1500 Billet Upper Control Arm Kit. Recommended Aftermarket Wheels: 18x9 with 5” Backspace / 0mm Offset. Recommended Aftermarket Wheels: 20x9 with 5” Backspace / 0mm Offset. Camber and caster adjustability allows for precise wheel alignment. TECH NOTE: Not compatible Silverado 1500 ZR2 or Sierra 1500 AT4X. TECH NOTE: Only fits models equipped with coil front springs. Features Patented Delta Joint (U.S. Patent No. 10,731,700). Vehicle specific taper pin provides OE-like fitment. PTFE Lined 7/8” FK Rod Ends for improved response. Built in o-ring sealed dust cover cap. OEM Wheels & Tires Fitment: Yes. 19-26 GM 1500 BILLET UCA DJ KIT. BILLET UCA KIT. 110-91399

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