The boxed sheet metal arms are welded, and powder coated semi-gloss black. Pre-installed maintenance free ball joints and pivot bushings are included. 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. These control arms are NOT made with provisions for dual shock mounts.Please understand these arms do not actually lift the vehicle. You will need to adjust the torsion bars and or install lifting keys to get the vehicle to sit higher. These arms allow for the extra travel needed when adjusting the torsion keys. Some will say, adjusting the torsion keys or adding new lifting keys will automatically give you a harsh ride, thus blaming the torsion keys themselves. This is just simply not true, re-indexing the torsion bars does not change the spring rate of the torsion bar.
That being said, there are other components necessary to do the job correctly and not cause the vehicle to experience a harsh ride. Things like incorrect shock length and extreme ball joint angles can cause the vehicle to ride rough.This kit has all the components to get the job done correctly and give you a better than factory ride! Cognito recommends a 285/75/R16 on a factory wheel or 8" wide aftermarket wheel with a 4.5" to 4.75 back space. Please be aware the classic body 01-06 has more fender room than the 07-10 new body style. Some 285's with aggressive tread pattern can be too wide as well and may require some extra trimming. A wheel alignment will be necessary after installing this kit.
A torsion bar unloading tool is necessary to complete this installation safety. If you are unfamiliar with this procedure please have a qualified mechanic perform this upgrade.Does NOT fit 1500 Light Duty. Powered by SixBit's eCommerce Solution. This item is in the category "eBay Motors\Parts & Accessories\Performance & Racing Parts\Auto Performance Parts\Chassis, Suspension & Brakes\Lift Kits & Parts". The seller is "sevensat" and is located in this country: US. This item can be shipped to United States.