UMI's on-car adjustable lower control arms for 1982–2002 GM F-Body models combine polyurethane bushings at the chassis end with a swivel Roto-Joint at the axle to balance street comfort and free rear-end articulation. The Roto-Joint features a 4140 chrome-moly spherical ball running in a CNC-machined delrin race and is adjustable and rebuildable. Constructed of 1.250" x 0.120" DOM tubing, these arms ship assembled and powder coated.
UMI Performance 82-02 GM F-Body On-car Adjustable Control Arms- Poly/Roto-Joint