UMI Performance 91-96 Impala SS Adjustable Extended Length Upper Control Arms - Roto-Joints

Eliminate wheel hop, increase traction and improve handling performance with an easy bolt on installation. UMI Performance’s adjustable upper controls feature on car adjustability and are supplied with spherical Roto-Joints. The Roto-Joint design is a pivot ball lined with a greaseable delrin race designed to offer 28 degrees of total unrestricted movement, more than adequate for a bind free, low friction operation. The Roto-Joint design improves performance over the factory rubber and aftermarket polyurethane bushings by allowing the suspension to articulate correctly, and provide precision handling. The installed UMI Roto-Joint allows rear end free movement when high handling, auto cross or road race is a concern while still being a 100% streetable setup. The installed delrin race, which lines the spherical ball, absorbs shock and road noise for a quiet and smooth operation on any street or track driven vehicle.
UMI’s adjustable upper control arms use greaseable Roto-Joints for bind-free suspension movement, sharper handling, and quiet street manners. On-car adjustability makes pinion angle changes easy, improving traction and reducing wheel hop.