UMI Performance is a leading manufacturer of high-performance suspension and drivetrain components, designed to enhance the handling, stability, and overall performance of muscle cars, street rods, and racing vehicles. Specializing in control arms, sway bars, torque arms, and chassis braces, UMI Performance provides precision-engineered solutions that optimize vehicle dynamics and improve driving experience. Proudly made in the USA, UMI Performance uses premium materials and advanced manufacturing techniques to ensure strength, durability, and reliability in every product. Whether you're building a race car or upgrading your daily driver, UMI Performance delivers the components you need to achieve superior control and performance on the road or track.
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. UMIs springs are designed to add modern handling and a crisp ride while maintaining the factory muscle car appearance. 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 floatingĀ 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. They have a tough, black powder coat finish and UMI proudly manufactures these premium quality springs in the USA.
Installation Instructions
This Part Fits:
Fitment Years: 1964, 1965, 1966.
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. UMIs springs are designed to add modern handling and a crisp ride while maintaining the factory muscle car appearance. 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 floatingĀ 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. 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 |
Fitment Years: 1964, 1965, 1966.
- Category:
- Suspension>Lowering Springs
- Core:
- N
- Core Price:
- 0
- LTL:
- N
- MPN:
- 4048R
- Proposition 65:
- Y
