G-Plus tubular upper control arms are shipped fully assembled. They feature billet cross shafts, Del-a-lum bushings, ball joints, and bump stops. The arms can be used with stock or dropped spindles. The new angles designed into the control arm keep the tire contact patch flatter on the pavement through the turns and also increases straight-line stability. New alignment specifications are giving with the arms so you can get the greatest benefit from the design, (Increased tire life and better handling).