UMI Performance · New
UMI Performance 78-88 GM G-Body Front 1in 70-81 F-Body 2-1/2in Lowering Spring
MPN 3050F · Store SKU umi3050F
Supplier stock checked 11/7/2026, 8:06:45 AM UTC. Adding a part does not reserve it.
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Product details
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. 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 1978-1988 G-Body 1970-1981 F-Body
Manufacturer fitment & guides
Check 3050F against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
