UMI Performance 403256-3-R Tubular A-Arm Kit for 1964-1972 GM A-Body

New premium 0.9″ taller upper and 0.5″ taller lower ball joints for improved camber curve, lowered center of gravity and reduced bump steer

Combination of 0.9/0.5 taller ball joints provides the same benefit as a 1.4 taller spindle

Lower a-arms are assembled with UMI manufactured greaseable & fluted CNC machined zero deflection Delrin bushings for ultimate smooth suspension action

Fits factory spindles, drop spindles & works with factory springs, lowering springs and coilover kits

This kit is intended for use only with lowered cars. The upper a-arm bump stop is not compatible with raised vehicles.

Contact us for other ball joint options. These arms work nicely with other tall spindles and proper ball joint selection.

UMI’s 403256-3 a-arm kit adds 1.4 inches of much needed spindle height and includes Delrin lower a-arm bushings and adjustable rod end uppers, making this our ultimate a-arm kit. This kit is for the handling enthusiast who wants the ultimate camber gain geometry while maintaining the ability to use a factory spindle. The lower a-arms feature tough tubular construction with polyurethane spring isolators for ride comfort and greaseable UMI-manufactured Delrin bushings for ultimate handling, smooth bind-free suspension motion and a sporty ride. The 0.5″ taller-than-stock lower ball joint lowers the front of the car 1/2″, reduces factory bump steer and adds spindle height. The ball joint mount is angled slightly from stock to permit usage with lowered vehicles and the design offers additional tire clearance. Delrin bushings maintain alignment with precision while providing the ultimate in friction free movement. The tubular upper a-arms are assembled with smooth operating, race quality rod ends as well as UMI-built billet CrMo cross shafts. They feature a relocated mounting pad to increase caster and are loaded with 0.9″ taller upper ball joints to improve camber performance. In most cases, no shims will be required (depending on parts combination and chassis straightness). Both upper and lower a-arms are jig built to maintain accuracy for a perfect fit every time and come preloaded with premium ball joints. Critical areas are TIG welded for superior strength and a clean look. UMI’s extensive testing on the street, drag strip and skid pad ensures a quality product able to with stand all types of conditions. The ultra tough red or black powder coat finish guarantees your performance parts stay beautiful on your street car, drag car, autocrosser or Pro-Touring machine.

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