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The Cognito SM Series ball-joint upper control arms add improved droop travel, corrected ball joint angle, and a slight caster increase for better highway stability on 2001–2013 Silverado and Sierra 2500/3500 trucks. Welded boxed sheet-metal construction is powder-coated semi-gloss black and includes pre-installed, maintenance-free ball joints and pivot bushings. These arms are sold without provisions for dual shock mounts and are made in the USA.
Cognito 01-13 Chevy/GMC Silverado/Sierra 2500/3500 HD 2WD/4WD Ball Joint SM Series UCA Kit
