P/N 4056-3 priced at $579.99

Today’s Pro Touring A-bodies are handling like never before. Achieve your goal of awesome handling with UMI’s new 4056 adjustable upper a-arm. This arm precisely locates a tall upper ball joint which in turn improves the camber curve and results in more front end grip. The advanced design of the a-arm also relocates the ball joint plate rearward for increased caster and improved stability and steering feel. The CrMo cross shaft holds two precision rod ends which are used to adjust the caster and camber. These precision bent tubes are TIG welded to the laser cut ball joint pad which houses a 0.9” or 0.5” taller upper ball joint (standard or deleted ball joint available upon request). A laser cut bump stop brace completes the arm. If used for drag racing, the 4056 can also accommodate a travel limiter. In addition, the 4056 can be used with most other aftermarket tall spindles intended to fit the A-body application. The 4056 is available in beautiful red or black powder coat. UMI chooses US materials and proudly designs, manufactures, races and tests out of our facility in Philipsburg, PA – USA.

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Adjustable Upper Front A-arms with 0.9" Taller Ball Joints for the 64-72 GM A-Body