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...

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 Performance single adjustable lower control arms feature an Energy Suspension polyurethane bushing set-up on one end and a QA1 spherical rod end on the other. This type of set-up allows rear end...

UMI Performance single adjustable lower control arms feature an Energy Suspension polyurethane bushing set-up on one end and a QA1 spherical rod end on the other. This type of set-up allows rear end...

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...

Don't reuse old rusty bolts when installing aftermarket control arms when you can replace them with new ones. Our kit includes new high grade hardware for installing your new upper and lower A-Arms...

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 bolt-in rear coilover bracket kit is a complete mounting solution for your Quick Performance axle in your 1978-1988 GM G-Body. This race-proven lower bracket bolts in using the adjustable...

UMI Performance 78-92 GM G-Body & F-Body Front A-Arm Hardware Kit

This kit includes (1) set of our Boxed lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate Arms". Both items are direct replacements of the OEM set up adding...

This kit includes (1) set of our Boxed lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate Arms". Both items are direct replacements of the OEM set up adding...

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...

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