These tubular control arms are designed for coil-over with the tall spindle conversion, the spring pocket is replaced with a laser cut 3/16" plate and re-enforced with 1/8" tabs. Since the shock T-bar is supporting the load rather than the spring switching to this lower arm ensures strength and durability. These arms are fully assembled with low friction ball joints, and a unique zero bind sway bar end links. The arms have Del-a-lum bushings installed which offers zero bind and are 100% lube able. Get rid of those loud poly bushings or those bound up rubber bushings, and get hooked up with these state of the art negative roll arms from Global West.