UMI Performance

UMI Performance builds chassis parts for GM and Ford performance cars and trucks, and control arms are by far the largest group here. Next come sway bars, shocks and struts, lift and lowering kits, leaf springs, bushings and coil springs.

The named vehicles are Ford Mustang, Chevrolet Camaro, Pontiac G8, Ford F-150, Chevrolet Impala and Chevrolet S10. Many titles name GM platforms instead of a model: A-Body, B-Body, F-Body and G-Body, and C10 trucks. Find your platform by name and years in the title.

The control arm listings include lower arms, upper arms, rear arm kits, tubular and fully boxed designs, adjustable uppers, torque arms and rod ends such as the Roto-Joint. Drag-oriented parts are marked as such, so read the description for the use named. The lowering spring kits and sway bar kits are sold as sets for a specific platform.

Choose what to change in order. Control arms and torque arms affect how the rear axle is located and how power reaches the ground. Sway bars adjust roll, and a lowering spring kit changes ride height. Bushing sets are sold separately for existing bars, so check the bar diameter in the title.

Compare in control arms and track bars, sway bars and lowering kits. Each product page lists the years, makes and models it fits.