UMI Performance 4062-B Front Control Arms | DOM Steel A-Arms for 1964-1972 GM A-Body

The UMI Performance 4062-B Corner Max front control arms represent a complete suspension upgrade engineered for 1964-1972 GM A-Body vehicles. These race-proven a-arms are designed from the ground up to maximize handling performance while maintaining stock mounting points for straightforward installation.

Construction and Design

Built from 1.500-inch USA-made DOM (Drawn Over Mandrel) steel tubing, these control arms deliver exceptional strength while minimizing weight compared to factory spring bucket designs. The coilover-only architecture eliminates unnecessary mass and provides a clean, race-ready appearance. Each arm is 100% manufactured in Philipsburg, PA, USA and track-tested to ensure maximum performance.

Geometry Improvements

The 4062-B features a forward-relocated ball joint cup that adds up to 4 degrees of caster potential, dramatically improving steering feel and straight-line stability. When paired with UMI part number 4056, these arms can achieve up to 10 degrees of total caster. The optimized camber curve and improved roll center height work together to deliver exceptional front-end grip through corners.

Premium Components

• Howe standard height ball joints pre-installed for reliable performance
• Delrin bushings provide smooth suspension travel with minimal deflection
• Double-shear coilover mount accepts industry-standard 1/2-inch rod end shocks
• Includes spacers for compatibility with popular shock models
• Swivel-style sway bar mounts with hardware fit UMI 4035, 4067, and most factory eyelet-style sway bars

Track-Ready Features

The removable lower mounting system allows spring changes at the track without separating ball joints, making setup adjustments quick and convenient. The double-shear construction throughout ensures durability under race conditions.

Compatibility Notes

Direct bolt-in installation for 1964-1972 GM A-Body chassis. For optimal performance with DSGTECH 2-inch lowering tall spindles, pair with UMI part number 4056 upper control arms and standard ball joint height components. Works with most aftermarket coilover shock systems featuring 1/2-inch rod ends.