UMI Performance · New
UMI Performance 64-72 GM A-Body Tubular Lower Front A-Arms Corner Max Standard Ball Joint
MPN 4062-B · Store SKU umi4062-B
Supplier stock checked 11/7/2026, 6:28:03 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
UMI’s Corner Max line of race a-arms are designed from the ground up to be the best performing stock mount a-arm upgrade on the market. The P/N 4062 arms are strong yet lightweight and feature a removable lower mounting system to permit spring changes at the track without separating the ball joints. The ball joint cup is moved forward the proper amount to add up to 4 degrees caster potential and is loaded with high quality Howe standard height ball joints. The double shear coilover mount accepts race industry standard ½” rod end shocks and comes with spacers for all popular models. Also included is a double shear sway bar mount and corresponding end link. The end link fits UMI 4035 and 4067 as well as many other factory fit sway bars. The P/N 4062 excels when paired with our DSGTECH 2” lowering tall spindle (tall spindle requires 4056 and standard ball joint height upper and lower). Swivel style sway bar mounts and hardware work with UMI P/N 4035, 4067 and most other factory eyelet style sway bars. Camber curve and roll center height improved to yield incredible front end grip. 4062 - 1964-1972 GM A-Body Tubular Lower A-Arms, Corner Max, Standard Ball Joint Includes Delrin bushings for smooth suspension travel and decreased deflection. 100% Manufactured and raced with pride out of Philipsburg, PA – USA. Lower ball joint relocated to increase caster by up to 4 degrees. Coilover-only design saves weight over spring bucket versions. These arms enhance steering feel and straight line stability. Pair with UMI P/N 4056 for the ultimate handling package. 10 degrees caster can be achieved when paired with 4056 Premium Howe standard height ball joints installed. 1.500” USA Made DOM steel tubing construction. Direct bolt-in for 1964-1972 GM A-Body. Features:
Manufacturer fitment & guides
Check 4062-B against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y
