The Cognito Ball Joint SM Series Upper Control Arms add style, function, and performance to your vehicle by improving the allowable droop travel for a better ride quality. The control arm kit features boxed sheet metal arms that are CNC robot welded and powder coated semi-gloss black.The King OEM performance kit custom is tuned to provide your GM with unparalleled levels of performance and ride quality. Built with the same quality of materials and precise tolerances found on our high-end race shocks our OEM upgrade kits enable you to experience the famous King ride quality on your daily driver or pre-runner.Notice: Any models that have ride height sensor and/or electrical shock connection will need a 3rd party fix. We recommend visiting modsandprojects.com for the solution until available direct from Cognito.