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The Cognito SM Series upper control arm kit for 2024 Silverado/Sierra 2500HD (ZR2/AT4X) is a stock-replacement upgrade that improves droop travel and corrects ball joint angle for these specific heavy-duty models. Boxed sheet metal arms arrive powder-coated semi-gloss black with maintenance-free pivot bushings and ball joints, delivering added caster and reliable fitment where enhanced suspension function is desired. Made in the USA.
Cognito 24-25 Chevy/GMC Silverado/Sierra 2500 SM Series Upper Control Arm Kit
