UMI Performance 64-72 GM A-Body 1in Lowering Spring Front – Set

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 530 lb/in rate. The 4050F’s 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 1” lowering with standard SBC, aluminum head and intake Big Block and Pontiac 400 as well as LS power (lightened cars may require spring trimming). The 4050F’s 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.

Fitment:
Buick Gran Sport Base 1967
Buick Skylark 350 1970
Buick Skylark 350 1972
Buick Skylark Base 1967 to 1972
Buick Skylark Custom 1968 to 1972
Chevrolet Chevelle 300 1967 to 1968
Chevrolet Chevelle 300 Deluxe 1967 to 1969
Chevrolet Chevelle Base 1967 to 1968
Chevrolet Chevelle Base 1970 to 1972
Chevrolet Chevelle Concours 1967 to 1972
Chevrolet Chevelle Concours Estate 1969 to 1972
Chevrolet Chevelle Deluxe 1967
Chevrolet Chevelle Greenbrier 1969 to 1972
Chevrolet Chevelle Malibu 1968 to 1972
Chevrolet Chevelle Nomad 1968 to 1972
Chevrolet Chevelle SS 1967 to 1972
Chevrolet El Camino Base 1967 to 1972
Chevrolet El Camino Custom 1968 to 1972
Chevrolet El Camino SS 1968 to 1972
Chevrolet Malibu Base 1967
Chevrolet Monte Carlo Base 1970 to 1972
Oldsmobile 442 Base 1967 to 1971
Oldsmobile Cutlass Base 1967 to 1972
Oldsmobile Cutlass Cruiser 1972
Oldsmobile Cutlass Holiday 1967
Oldsmobile Cutlass S 1968
Oldsmobile Cutlass S 1971 to 1972
Oldsmobile Cutlass Turnpike Cruiser 1967
Oldsmobile F85 Base 1967 to 1972
Pontiac Grand Prix Base 1967 to 1972
Pontiac GTO Base 1967 to 1972
Pontiac GTO The Judge 1970 to 1971
Pontiac Tempest Base 1967 to 1970
Pontiac Tempest Custom 1967 to 1969
Pontiac Tempest GT 1970
Pontiac Tempest Safari 1967 to 1969