UMI Performance

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...

UMI's boxed lower control arms utilize our Roto-Joint technology for a bind free performance and quiet comfortable ride quality. The boxed control arms are fabricated from 0.120” wall thickness...

UMI's boxed lower control arms utilize our Roto-Joint technology for a bind free performance and quiet comfortable ride quality. The boxed control arms are fabricated from 0.120” wall thickness...

UMI's boxed lower control arms utilize our Roto-Joint technology for a bind free performance and quiet comfortable ride quality. The boxed control arms are fabricated from 0.120” wall thickness...

UMI's boxed lower control arms utilize our Roto-Joint technology for a bind free performance and quiet comfortable ride quality. The boxed control arms are fabricated 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 one-piece NHRA legal drive shaft safety loop is a bolt-in application for the 78-96 GM B-body. This item bolts to existing floor pan holes in replace of the factory chassis brace and requires...

This one-piece NHRA legal drive shaft safety loop is a bolt-in application for the 78-96 GM B-body. This item bolts to existing floor pan holes in replace of the factory chassis brace and requires...

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’s high durometer polyurethane bushings replace the factory rubber rear end housing bushings. After many years of weather and abuse the factory rubber bushings tend to dry rot, crack and...

UMI’s high durometer polyurethane bushings replace the factory rubber rear end housing bushings. After many years of weather and abuse the factory rubber bushings tend to dry rot, crack and...

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...

This kit replaces both the rear upper and lower rear control arms on any 78-96 GM B-Body. Kit is designed to reduce traction loss and minimize wheel hop found with stock control arms. Control arms...