UMI Performance

Upper rear control arm hardware kit includes new hardware for installing one upper rear control arm in the 1959-1970 Chevrolet B-Body vehicles. Kit includes 5/8” grade 8 bolts and lock nuts...

Lower control arm hardware kit includes new hardware for installing lower rear control arms in the 58-64 Chevrolet B-Body vehicles. Kit includes 5/8” grade 8 bolts, washers and lock nuts. Note:...

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

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 upper rear control arms in you...

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’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 harden ...

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 harden ...

This NHRA legal drive shaft safety loop is a bolt-in application for the 82-87 GM G-Body. Bolts to existing floor pan holes with no welding required! This is a must for tracks that require a safety...

This NHRA legal drive shaft safety loop is a bolt-in application for the 82-87 GM G-Body. Bolts to existing floor pan holes with no welding required! This is a must for tracks that require a safety...

Transform your GM G-body with UMI's state-of-the-art modular crossmember system, designed to deliver precision, performance, and versatility. Engineered with a laser-cut tab and slot design, this...

Transform your GM G-body with UMI's state-of-the-art modular crossmember system, designed to deliver precision, performance, and versatility. Engineered with a laser-cut tab and slot design, this...

UMI’s weld-in double shear upper shock mount kit is the premium way to add a true racing coilover to the front of your G-Body. This kit includes the double shear mount, trim ring, gussets and full...

UMI’s 3060-1 bump steer kit allows adjustment of the outer tie rod height which in turn can help reduce or eliminate toe change during wheel travel. This kit includes a heavy duty 5/8" bolt and...

UMI’s F-Body and G-Body bump steer kit is designed to reduce or eliminate toe change during suspension travel (also known as “bump steer”). Reduction of bump steer improves handling and straight line...

Viking's front coilover kit pairs perfectly with UMI's 3057 a-arm and provides awesome performance at a great price point. Road race and auto-x cars can have increased rate and grip with an 850 lb/in...