UMI Performance 78-88 GM G-Body Front 1in 70-81 F-Body 2-1/2in Lowering Spring

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 Sprint Cup chassis engineer, these springs are the best in the business. Our springs are wound from 5160 CrSi premium wire and feature a linear 600 lb/in rate. UMI’s front springs are stiffer than stock to provide increased performance with decreased body roll and a lower center of gravity. These springs are suitable for Auto-x and Pro-Tour applications as well as corner carving/cruising.

The ride height is engineered for a 2-1/2” lowering with standard SBC as well as LS power (lightened cars may require spring trimming). The front springs are also suitable for full weight Big Block applications when ¼” nose down rake is desired.

The ride height is engineered for a 1” lowering with standard SBC as well as LS power (lightened cars may require spring trimming). The front springs are also suitable for full weight Big Block applications when ¼” nose down rake is desired.

Consistent rates and only the best materials (premium Chrome Silicon wire) ensure your cars sits properly for years to come.

Linear spring rates (600 lb/in front, 130 lb/in rear) provides a firm yet comfortable ride and incredible handling.

They have a tough black powder coat finish and UMI proudly manufactures these premium quality springs in the USA.

V6 Turbo Grand National may require spring trimming due to lower engine weight.

UMI Performance 78-88 GM G-Body Front 1in 70-81 F-Body 2-1/2in Lowering Spring

3050F - 1978-1988 GM G-Body Front 1", 1970-1981 F-Body 2-1/2" Lowering Spring

Suitable for Pro-Tour, Auto-x and general cruising.

No more floating feeling.

Manufactured in the USA

UMI- Lowering Spring

1978-1988 G-Body

1970-1981 F-Body

Lowering Spring