UMI adjustable upper & lower control arms: bolt-on, poly bushings, 1-hr install.The complete kit includes a set of UMI Performance single adjustable lower control arms and a set of UMIs "on car" double adjustable upper control arms. These direct bolt on replacements are designed to minimize wheel hop, improve cornering, lower ET's, and enhance track consistency. The upper control arms feature on car adjustability for quick and easy pinion angle adjustment. The spherical rod end allows for a bind free operation, making it a great
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