Round tubular Corvette upper arms are engineered for increasing cornering capabilities and straight-line stability. The upper control arms have new angles built into them so there is NO need for special shafts or frame modifications. The arms are pre-assembled with Del-a-lum bushings, billet cross shafts, upper ball joints, and bump stops. The arms are black powder coated and the cross shafts are gold zinc. The Del-a-lum bushings can be lubricated via grease fittings on top of the bushing housings in the arm. Note: Del-a-lum bushings are a six surface design that makes the product act like a bearing rather then a bushing. The bushing does not create harshness and has a warranty. Stock ball joints are used in the control arm so when the time comes to replace a worn out ball joint, your local parts house will have the item.
New alignment specifications are also supplied with the control arms.