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UMI adjustable upper control arms for 1991–1996 Impala SS fit all rear end housings and use greaseable spherical Roto-Joints to allow bind-free articulation and 28° of total movement. CNC-machined mounting plates and a chromoly on-car adjuster make pinion angle changes quick while the delrin race in the Roto-Joint absorbs shock and road noise for quiet street manners. Bolt-in installation typically takes 1–2 hours with basic tools.
UMI Performance 91-96 Impala SS Adjustable Extended Length Upper Control Arms - Roto-Joints
