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UMI adjustable upper control arms for 1978–1988 GM G‑Body are specifically made to install a 1964–1972 A‑Body 10‑ or 12‑bolt rear end into 1978–1988 G‑Body cars, including Monte Carlo, Malibu, El Camino, Regal, Grand National, Grand Prix and Cutlass. These adjustable arms use 4140 chromoly adaptors and heat‑treated adjusters with QA1 spherical rod ends for free rear movement, correct pinion angle and reduced bind during high‑handling use.
UMI Performance 78-88 GM G-Body 12-Bolt Swap Adjustable Upper Control Arms
