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.
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 |
