UMI Performance 4062-1-B Front Upper Control Arms 1964-1972 GM A-Body Coilover

The UMI Performance 4062-1-B Corner Max front upper control arms are engineered for serious performance enthusiasts seeking maximum handling capability from their 1964-1972 GM A-Body vehicles. These race-proven arms feature a coilover-only design that eliminates unnecessary weight while delivering superior strength and precision.

Key Features:

• Direct bolt-in fitment for 1964-1972 GM A-Body chassis
• Constructed from 1.500-inch USA-made DOM (Drawn Over Mandrel) steel tubing for exceptional strength-to-weight ratio
• Premium Howe +3/4-inch tall ball joints pre-installed for extended suspension travel
• Relocated lower ball joint cup increases caster potential by up to 4 degrees
• Achieves up to 10 degrees of caster when paired with UMI P/N 2656-1
• Includes high-quality Delrin bushings for smooth articulation and reduced deflection
• Double-shear coilover mount accepts race industry standard 1/2-inch rod end shocks with included spacers
• Removable lower mounting system allows spring or shock changes without separating ball joints
• Swivel-style sway bar mounts and hardware compatible with UMI P/N 4035, 4067, and most factory eyelet-style sway bars
• 100% manufactured and race-tested in Philipsburg, Pennsylvania, USA

Performance Benefits:

These Corner Max upper control arms dramatically improve camber curve geometry and roll center height, resulting in exceptional front-end grip and cornering capability. The enhanced caster angle improves steering feel, straight-line stability, and high-speed handling. The coilover-only design saves weight compared to traditional spring bucket versions while providing the adjustability serious racers demand.

Complete System:

For the ultimate handling package, pair these upper control arms with UMI P/N 4056 lower control arms. The included double-shear sway bar mount and corresponding end link integrate seamlessly with UMI's tubular sway bar offerings and most factory-fit applications.