UMI Performance 78-88 GM G-Body Premium Front Upper Ball Joint - 101-10019

Our high-quality ball joints are the great additional to your new upper A-Arms. Premium ball joints are made from high strength steel, feature a self-adjusting internal spring, dust boot, and a CNC...

UMI Performance 78-88 GM G-Body Pro-Touring Rear Suspension Kit - Black - GBR024-B

UMI's new pro-touring kit features all of our top of the line Pro-Tour style components in one convenient package. The lower arms are loaded with Roto-Joints on each end and feature TIG welded...

UMI Performance 78-88 GM G-Body Pro-Touring Rear Suspension Kit - Red - GBR024-R

UMI's new pro-touring kit features all of our top of the line Pro-Tour style components in one convenient package. The lower arms are loaded with Roto-Joints on each end and feature TIG welded...

UMI Performance 78-88 GM G-Body Rear Coilover Bracket Kit Bolt-In Brackets Only - 3049

UMI’s bolt-in rear coilover bracket kit is a complete mounting solution for your factory axle 1978-1988 GM G-Body. This race-proven lower bracket bolts in using the standard trailing arm mounting...

UMI Performance 78-88 GM G-Body Rear Coilover Bracket Kit Control Arm Relocation Bolt In - 3048

UMI’s bolt-in rear coilover bracket kit is a complete mounting solution for your factory axle 1978-1988 GM G-Body. This race-proven lower bracket bolts in using the standard trailing arm mounting...

UMI Performance 78-88 GM G-Body Rear Control Arm Kit Fully Boxed Lowers - 302116-B

This kit replaces both the rear upper and lower rear control arms on any 78-87 GM G-Body. Kit is designed to reduce traction loss and minimize wheel hop found with stock control arms. Control arms...

UMI Performance 78-88 GM G-Body Rear Control Arm Kit Fully Boxed Lowers - 302116-R

This kit replaces both the rear upper and lower rear control arms on any 78-87 GM G-Body. Kit is designed to reduce traction loss and minimize wheel hop found with stock control arms. Control arms...

UMI Performance 78-88 GM G-Body Rear Control Arm Kit Fully Boxed Lowers Adjustable Uppers - 302117-B

UMI’s rear control arm kit is a bulletproof addition to your car. Suitable for street, strip or corner carving, this kit minimizes suspension deflection for a crisp handling setup and less wheel...

UMI Performance 78-88 GM G-Body Rear Control Arm Kit Fully Boxed Lowers Adjustable Uppers - 302117-R

UMI’s rear control arm kit is a bulletproof addition to your car. Suitable for street, strip or corner carving, this kit minimizes suspension deflection for a crisp handling setup and less wheel...

UMI Performance 78-88 GM G-Body Rear Frame Notching Kit Weld In - 3061

UMI’s P/N 3061 G-Body frame notch kit allows for narrowing the rear upper frame rails on the G-Body for installation of a wider tire. Laser cut 1/8” premium steel follows the frame contour (with some...

UMI Performance 78-88 GM G-Body Rear Lift Bar Set Bolt In - 3022-B

Wheel hop or traction issues? We have the solution! Optimize your vehicle's instant center and improve forward traction by lowering the rear of the lower control arm. This trailing arm and...

UMI Performance 78-88 GM G-Body Rear Lift Bar Set Bolt In - 3022-R

Wheel hop or traction issues? We have the solution! Optimize your vehicle's instant center and improve forward traction by lowering the rear of the lower control arm. This trailing arm and...