UMI Performance 64-72 GM A-Body Tubular Lower Front A-Arms Corner Max Standard Ball Joint

UMI Performance is known for making well-built suspension components for American muscle cars, and their Corner Max line of A-arms is designed to give you the best possible performance from a stock-mount upgrade. These P/N 4062-R tubular lower front A-arms are built for 1964-1972 GM A-Body vehicles, including popular models like the Chevrolet Chevelle, Buick Skylark, and Pontiac GTO. They are constructed from strong, lightweight 1.500-inch USA-made DOM steel tubing and are a direct bolt-in replacement for your factory arms.

What sets these arms apart is their focus on track performance and adjustability. The lower ball joint is moved forward to allow for up to 4 degrees of additional caster, which significantly improves steering feel and straight-line stability. The design is coilover-only, saving weight compared to spring bucket setups, and features a double shear coilover mount that accepts standard 1/2-inch rod end shocks, with included spacers for popular models. You also get a double shear sway bar mount with an end link that works with many factory-style sway bars. Inside, Delrin bushings are used for smooth suspension travel and reduced deflection, contributing to improved camber curve and roll center height for incredible front-end grip.

These A-arms come pre-assembled with premium Howe standard height ball joints. For the ultimate handling package, UMI recommends pairing these with their P/N 4056 tall spindle, which can help achieve up to 10 degrees of caster. This setup is manufactured and raced with pride in Philipsburg, PA, USA.