Cognito Ball Joint Tubular Upper Control Arm Kit with Dual Shock Mounts for 2001-2010 Chevrolet and GMC 1500HD / 2500 / 2500HD / 3500 / 3500HD 2WD/4WD trucks, Chevy and GMC 2001-2013 2500 2WD/4WD SUVs and Hummer H2, H2 SUTs. Made in the USA. specifically for leveled and lifted applications where an upgrade is desired to provide better performance, style, and function. Powder coated semi-gloss black. Cognito alloy series ball joints are included as well as new crush sleeves and polyurethane bushings. Ample droop travel is required for good ride quality and all suspension components to last and work properly. This control arm kit will add performance to the Chevy and GMC truck by correcting the ball joint angle for lifted and leveled applications, increasing droop travel, and also increases caster slightly for better highway speed drivability. NOTE: These control arms are made with provisions for dual shock mounts.