UMI Performance 4062-R Front Upper Control Arms for 1964-1972 GM A-Body

The UMI Performance 4062-R Corner Max upper control arms represent a complete redesign of the factory A-body suspension geometry, engineered to deliver maximum performance for 1964-1972 GM A-Body vehicles. These race-proven arms are constructed from 1.500" USA-made DOM steel tubing and manufactured with pride in Philipsburg, PA.

Key Performance Features:

• Direct bolt-in replacement for 1964-1972 GM A-Body vehicles with coilover suspension
• Relocated ball joint cup moves forward to add up to 4 degrees of caster potential
• Achieves up to 10 degrees total caster when paired with UMI P/N 4056 lower control arms
• Improved camber curve and roll center height for exceptional front-end grip
• Enhanced steering feel and straight-line stability over factory arms
• Coilover-only design eliminates spring bucket for significant weight savings

Premium Components:

• High-quality Howe standard height ball joints pre-installed
• Delrin bushings provide smooth suspension travel with minimal deflection
• Double-shear coilover mount accepts industry-standard ½" rod end shocks with included spacers
• Swivel-style sway bar mounts with hardware compatible with UMI P/N 4035, 4067, and most factory eyelet-style sway bars
• Removable lower mounting system allows spring changes without separating ball joints

These Corner Max upper control arms excel when paired with UMI's DSGTECH 2" lowering tall spindles (requires P/N 4056 and standard ball joint height). The result is a complete handling package that transforms your A-body's suspension performance for street or track use.