UMI Performance

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 ...

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 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...

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 together to distribute load and stiffen the chassis...

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 together to distribute load and stiffen the chassis...

This kit manufactured by UMI Performance includes a set of tubular rear lower control arms, rear upper control arms, new rear end housing bushings and grade 8 mounting hardware. This control arm...

This is a complete rear suspension kit and includes all items needed to rebuild the rear suspension on your 1964-1972 A-Body. This kit includes tubular lower control arms, tubular upper controls,...

This kit manufactured by UMI Performance includes a set of tubular rear lower control arms, rear upper control arms, new rear end housing bushings and grade 8 mounting hardware. This control arm...

Upgrade your 64-72 A-Body rear suspension with our complete rear suspension kit. This kit includes tubular lower and upper control arms, adjustable frame braces, rear end housing bushings, 1" solid...

UMI's lowering package consists of four Viking double adjustable shocks, a hybrid front coil over spring system and either 1 or 2 inch UMI rear lowering springs. With moderately increased spring...