UMI Performance lists the 1968-1972 GM A-Body rear control arm kit, which has fully boxed lower arms built from 3-inch x 1-1/2-inch x 1/8-inch wall mild steel rectangular tubing.

Boxed control arms include fully capped radius ends to prevent debris from entering to arm while offering the factory look to your classic. Suitable for street, strip or corner carving, these arms minimize suspension deflection for a crisp handling setup and reduce wheel hop. Sway bar mounting holes are reinforced with TIG welded sleeves to allow factory style sway bar mounting, including UMI’s popular 1” version. Boxed control arms are assembled with greaseable polyurethane bushings for a quiet comfortable ride. Choose black powder coat to get the factory looking control arm you’ve been seeking. Features

Part number: 402116-R (402116R)