UMI Performance 59-64 GM B-Body Adjustable Upper Control/Trailing Arm inBanana ArmininUMI Performance offers on car adjustable rear control arms for GM B Body vehicles. These direct replacements for factory arms reduce wheel hop, improve cornering, and enhance track consistency. The adjustable design allows pinion angle adjustments without removal. Features include grease able bushings, TIG welded construction, and a 4140 heat treated Chrome Moly adjuster. Also known as "Banana Arms." Verify the number needed for your vehicle. This
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