The Cognito SM Series Builders Kit for 2020–2024 Silverado/Sierra 2500/3500 HD supplies raw, unassembled upper control arms so a builder can custom finish and assemble them without damaging bushings or ball joints. These arms correct ball joint angle for lifted and leveled applications and improve allowable droop travel to preserve ride quality and component life when upgrading suspension.
Cognito 20-24 Chevy/GMC Silverado/Sierra 2500/3500 HD 2WD/4WD Ball Joint SM Series UCA Builders Kit