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UMI tubular rear lower control arms for 1978–1988 G‑Body use Roto‑Joint pivot balls with Delrin races to provide about 28° of unrestricted movement for bind‑free articulation and quieter operation. Supplied fully assembled with greaseable Roto‑Joints, reinforced sway bar provisions, DOM tubing construction and durable powder coat finish, they improve handling and allow rear‑end freedom for street or track use while using OEM hardware.
UMI Performance 78-88 G-Body Rear Lower Control Arms- Roto-Joint/Roto-Joint
