Products

Rear lower control arms are a necessary upgrade for any General Motors A-Body vehicle. Our control arms are designed to replace the weak and rusted...

UMI Performance's single adjustable lower control arms combine an polyurethane bushing on one end with a QA1 spherical rod end on the other. This d...

UMI Performance's single adjustable lower control arms combine an polyurethane bushing on one end with a QA1 spherical rod end on the other. This d...

Don't reuse old rusty bolts when installing aftermarket A-Arms when they can easily be replaced with new ones. Our kit includes new high grade hard...

Don't reuse old rusty bolts when installing aftermarket A-Arms when you can replace them with new ones. Our kit includes new high grade hardware fo...

Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new one. Our kit includes all new hardware...

Don't reuse your old rusty bolts when installing aftermarket control arms when you can replace them with new ones. Our kit includes all new hardwar...

The UMI P/N 2999 adds the finishing touch to allow full articulation of the GM 4-link rear suspension. By using 2999 and either Roto-Joints or rod ...

A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sp...

A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading ...

A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sp...

This kit includes (1) set of our tubular single adjustable lower control arms and (1) set of our on-car adjustable upper control arms, "Ultimate ...

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 loca...

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 loca...

This rear shock tower brace is built using 3/16" thick precision laser-cut steel for strength and a precise fit, tying the rear upper shock mounts ...

This rear shock tower brace is built using 3/16" thick precision laser-cut steel for strength and a precise fit, tying the rear upper shock mounts ...

Rear control arms are an essential suspension upgrade for your GM vehicle. Stock control arms are often subpar, leading to traction loss and poor h...

Rear control arms are an essential suspension upgrade for your GM vehicle. Stock control arms are often subpar, leading to traction loss and poor h...

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 borde...

UMI’s GM A-body bump steer kit for 1971-1972 models is designed to improve handling and straight-line stability by reducing or eliminating toe chan...

UMI’s 4060-1 GM A-body bump steer kit (1971-1972) is designed to reduce or eliminate toe change during suspension travel (bump steer). This improve...

UMI’s Race Proven #cornermax a-arm and mount kit brings race car handling to your truck. Double shear coilover-only mounts hold all popular coilove...

The UMI Performance P/N 6410 flip kit lowers the rear of the 1973-1987 GM C10 truck six inches by relocating the axle above the leaf spring. The sa...

Heavy duty 2.5″ drop spindles feature UMI satin black powder coat for ultimate durability. Spindles use GM C10 factory bearings and accept factory ...

The UMI Performance P/N 6411 rear shock relocation kit provides a proven mounting solution for stock length shocks on flip kit lowered vehicles. St...

UMI’s street performance a-arm kit improves steering feel, enhances cornering and reduces wandering.This Part Fits: Year Make Model Submodel 197...

Replacement rubber bump stops bolt in place of damaged or worn factory bump stops using existing mounting holes. Minor trimming of mounting flange ...

UMI’s 1993-2002 GM F-Body bump steer kit allows adjustment of the outer tie rod height which in turn can help reduce or eliminate toe change during...

UMI’s 2060-1 bump steer kit allows adjustment of the outer tie rod height which in turn can help reduce or eliminate toe change during wheel travel...