UMI Performance

UMI's boxed lower control arms feature Roto-Joint technology for a smooth and bind-free performance, providing a comfortable ride. The control arms are constructed from 0.120” wall thickness...

UMI's boxed lower control arms feature Roto-Joint technology for a smooth and bind-free performance, providing a comfortable ride. The control arms are constructed from 0.120” wall thickness...

UMI Performance 78-96 GM B-Body Complete Rear Control Arm Hardware KitThis Part Fits:YearMakeModelSubmodel1978-1981,1987-1988BuickLeSabreBase1985BuickLeSabreCollector's...

This drive shaft safety loop is NHRA legal and designed specifically for the 1978-1996 GM B-body. It is a bolt-in application that replaces the factory chassis brace without the need for welding or...

This drive shaft safety loop is NHRA legal and designed specifically for the 1978-1996 GM B-body. It is a bolt-in application that replaces the factory chassis brace without the need for welding or...

Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new ones. This kit includes all new hardware for installing lower rear control arms in you...

UMI Performance control arm relocation brackets quickly turn your factory or aftermarket rear control arms into a lift bar set-up. The relocation brackets are designed to lower the rear mount of the...

UMI offers high durometer polyurethane bushings to replace the factory rubber rear end housing bushings. These bushings are designed to improve ride quality and performance by replacing the worn out...

UMI offers high durometer polyurethane bushings to replace the factory rubber rear end housing bushings. These bushings are designed to improve ride quality and performance by replacing the worn out...

Improve the performance of your GM 4-link rear suspension with UMI’s P/N 2995. This high-quality component is designed to provide smooth and bind-free movement, ideal for a range of driving...

Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on the borderline of "junk", bushing deflection and rusting weak...

Rear control arms are one of the most important suspension modifications that can be done to your GM vehicle. Stock control arms are on the borderline of "junk", bushing deflection and rusting weak...