QA1's upper Street Performance control arm kit is specified for 1964–1972 GM A/G‑body applications and includes ball joints and bushings. The kit aims to correct front end geometry and provide an optimized strength‑to‑weight ratio, supplied as a bolt‑in replacement for the listed A‑ and G‑body years and built to QA1's street performance standards.
QA1 64-72 GM A/G-Body Street Performance Upper Control Arm Kit - Front