UMI Performance 82-02 GM F-Body Tubular Non-Adjustable Lower Control ArmsUMIs heavy duty control arms are direct replacements of the weak, factory stamped rear lower control arms. UMIs control arms are constructed of 1 1 2 mild steel tubing with CNC machined ends and assembled with polyurethane bushings. These direct bolt on replacements are designed to minimize wheel hop and improve cornering, while lowering track ETs and helping track consistency. Control arms come complete with polyurethane bushings, grease fittings,