Vendor : UMI Performance
Product Type : Lowering Springs
Sku : UMI4048R
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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. 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. They have a tough, black powder coat finish and UMI proudly manufactures these premium quality springs in the USA.
Installation InstructionsThis 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 | 300 |
| 1965-1966 | Chevrolet | Chevelle | 300 Deluxe |
| 1964-1966 | Chevrolet | Chevelle | Malibu |
| 1964-1965 | Chevrolet | Chevelle | Malibu Super Sport |
| 1966 | Chevrolet | Chevelle | Super Sport 396 |
| 1964-1966 | Chevrolet | El Camino | 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 |
We will be temporarily closed from Monday 10th August until Friday 21st August 2026 while we relocate to our new premises and carry out our annual stock take. Our website will remain open and you are welcome to place orders during this period. However, new orders placed between 11th and 21st August will not be processed or dispatched until we reopen. Please note: Any orders currently open and already in our system will continue to be processed as normal and will not be affected by the temporary closure. If you have an urgent order or require something that cannot wait until we reopen, please contact us via our website chat or email. We will do our best to assist wherever possible. Normal service will resume on Saturday 22nd August 2026. We apologise for any inconvenience this may cause and greatly appreciate your patience and continued support while we complete our relocation and annual stock take. Thank you for your understanding and continued support.
