UMI Performance 78-96 GM B-Body Adjustable Upper Control Arms- Ultimate ArmsAdjustability is crucial when it comes to tuning your street car's suspension. Our Ultimate "on car" adjustable upper control arms for the rear of your GM vehicle have been meticulously designed with the best materials and components available. We have replaced weak areas with aircraft quality 4140 Chrome Moly steel and utilized TIG welded construction for maximum durability. These control arms feature high quality QA1 spherical rod ends for a smooth
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