UMI Performance

The Stage 1 is perfect for the A-Body owner who wants a simple and effective suspension upgrade with real handling improvement. This kit includes our trusted 1.250” front sway bar and 1” rear sway...

The Stage 1 is perfect for the A-Body owner who wants a simple and effective suspension upgrade with real handling improvement. This kit includes our trusted 1.250” front sway bar and 1” rear sway...

This kit includes (1) set of our tubular lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate Arms"_x009d_. Both items are direct replacements of the OEM set up...

This kit includes (1) set of our tubular lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate Arms"_x009d_. Both items are direct replacements of the OEM set up...

This kit manufactured by UMI Performance includes a set of tubular rear lower control arms and a set of adjustable rear upper control arms. This control arm kit is a direct bolt-on replacement...

This kit manufactured by UMI Performance includes a set of tubular rear lower control arms and a set of adjustable rear upper control arms. This control arm kit is a direct bolt-on replacement...

UMI Performance 68-72 GM A-Body Lowering Kit 1in LoweringThis Part...

UMI Performance 68-72 GM A-Body Lowering Kit 2in LoweringThis Part...

UMI’s P/N 4008 allows the installation of LS power into your 1968-1972 GM A-Body. UMI’s LS mounts place the LS engine in the factory SBC/BBC location with the ability to move the engine...

UMI’s P/N 4008 allows the installation of LS power into your 1968-1972 GM A-Body. UMI’s LS mounts place the LS engine in the factory SBC/BBC location with the ability to move the engine...

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'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’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’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’s premium boxed lower control arms are fully boxed to offer the factory look while still providing enhanced performance to the vehicle. Our premium factory arms are built from larger 3” x ...