Control Arms & Castors

Cognito's heavy duty boxed uni-ball upper control arms for your 2011-2019 GMC/Chevy Duramax 6.6L 2/4WD 2500HD/3500HD truck with the LML/L5P motor.

ReadyLift Extreme Duty Fabricated Upper Control Arms is designed to minimize maintenance and provided maximum durability for your 2011-2019 GMC/Chevy 6.6L Duramax truck.

The Cognito 199-91161 Upper Control Arm Bushing Kit that will replace the worn-out control arm bushing in your 2011-2019 GM Silverado/Sierra 2500HD/3500HD 2WD/4WD.

2011-2019 GMC/Chevy Duramax 6.6L 2/4WD 2500HD/3500HD LML & L5P - made for stock replacement or leveled and lifted applications where an upgrade is desired to provide better performance, style, and function. Alloy series ball joints are included as well as new crush sleeves and polyurethane bushings.