UMI tubular rear lower control arms for 1978–1988 G‑Body feature Roto‑Joint pivot balls lined with greaseable Delrin races to permit roughly 28° of unrestricted movement for bind‑free articulation. Shipped fully assembled, with reinforced sway bar mounts, durable powder coat finish and DOM tubing construction, these arms reduce bushing bind and road noise while restoring proper suspension articulation for improved handling on street or track.
UMI Performance 78-88 G-Body Rear Lower Control Arms- Roto-Joint/Roto-Joint