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UMI boxed lower control arms for 1978–1988 G‑Body fitted with dual Roto‑Joints provide full articulation and reduced bushing deflection for improved traction and handling. Built from 3" x 1½" x 1/8" rectangular tubing with reinforced sway bar provisions, greaseable pivot balls, and a resilient powder coat finish, they ship fully assembled and attach using OEM hardware for a straightforward upgrade that supports high‑travel, bind‑free suspension movement.
UMI Performance 78-88 G-Body Boxed Lower Control Arms- w/ Dual Roto-Joints
