UMI Performance 64-66 GM A-Body Spring Kit Factory Height

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. UMI’s springs are designed to add modern handling and a crisp ride while maintaining the factory muscle car appearance. 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 and general cruising. The ride height is engineered to be level 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 ¼” nose down rake is desired. They have a tough, black powder coat finish and UMI proudly manufactures these premium quality springs in the USA.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1964-1966	Buick	Skylark	Base
1964-1966	Buick	Special	Base
1964-1966	Buick	Special	Deluxe
1964-1966	Chevrolet	Chevelle	Base
1965-1966	Chevrolet	Chevelle	Deluxe
1964-1966	Chevrolet	Chevelle	SS
1964-1966	Chevrolet	El Camino	Base
1964-1966	Chevrolet	Malibu	Base
1964-1966	Oldsmobile	442	Base
1964-1966	Oldsmobile	Cutlass	Base
1964-1966	Oldsmobile	Cutlass	Holiday
1964-1966	Oldsmobile	F85	Base
1964-1966	Oldsmobile	F85	Deluxe
1966	Oldsmobile	F85	Holiday
1964-1966	Pontiac	GTO	Base
1964-1966	Pontiac	LeMans	Base