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UMI Performance's tubular lower and on-car adjustable upper control arm kit for 1978–1988 GM G-Body upgrades rear suspension strength and adjustability while replacing factory arms. The set improves ride and provides rear-end adjustment with a direct-fit installation using OEM hardware; detailed instructions are included to simplify swapping and help maintain proper rear geometry for street or track use.
UMI Performance 78-88 GM G-Body Lower Control Arm & Adjustable Upper Control Arm Kit
