UMI Performance 1967-1972 GM A-Body 1" Lowering Spring Kit
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 front springs are wound from 5160 CrSi premium wire and feature a linear 530 lb/in rate. The rear springs are wound from 9254 CrSi premium wire and feature a linear 130 lb/in rate. The linear rate provides consistent handling characteristics which are important for Auto-x and Pro-Tour applications while the increase in stiffness reduces body roll and prevents the "floating" feeling so common with the A-body. These springs are suitable for Auto-x and Pro-Tour applications as well as corner carving/cruising. The ride height is engineered for a 1" lowering with standard SBC, Pontiac 400 and aluminum head/intake Big Block Chevy as well as LS power (lightened cars may require spring trimming). The front springs are also suitable for full weight Big Block applications when nose down rake is desired. They have a tough, black powder coat finish and UMI proudly manufactures these premium quality springs in the USA.
Vehicle Applications: 1967-1972 GM A-Body 1″ Lowering Spring Set
Before we built suspension parts, Utmost Machine manufactured precision components for major brands such as Bell+Howell, Corning Asahi, and Sony. Our product line has changed over the years but our dedication to quality remains the same. In-House Manufacturing...If we can make it in our shop, we do. This means we control almost every aspect of the product, resulting in suspension components suitable for attacking the high banks of Daytona or more importantly, hauling your family. Engineered to Race... UMI Performance was founded in 2002 as a father/son business developing performance parts for GM and Ford products. They quickly began to focus on suspension upgrades for both older and late model muscle cars, and have become a leader in replacement and high-performance suspension components, from individual parts to entire kits. Our product engineers and sales team are racers. We race what we sell and use that experience to design and develop our products. 100% Made in USA... Our dedicated craftsmen and craftswomen use only the highest quality USA sourced raw materials to build components worthy of your dream car. UMI Performance was founded in 2002 as a father/son business developing performance parts for GM and Ford products. They quickly began to focus on suspension upgrades for both older and late model muscle cars, and have become a leader in replacement and high-performance suspension components, from individual parts to entire kits.
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