These tubular control arms are designed for coil-over, 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 G-plus arms from Global West.