Heavy duty, control arms are made with 1-1/4" D.O.M. tubing for maximum strength. Black powder coated with high quality rod ends and relocated shock bracket, these arms accept ALL56212 ball joints. Conventional springs must be mounted with the closed end seated in the control arm and the open end in the upper spring cup or a spring ramp (sold separately) may be welded onto lower plate. Rod end spacer kit to fit stock frame mount sold separately. These lower control arms are intended for racing and will not accept stock style lower ball joints.