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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
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Description
UMI Performance 64-66 GM A-Body Factory Height Springs RearA 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
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.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 | 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 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 1
Don't Waste Your Money
Bought this 2 year protection plan and come to find out it doesn't even cover simple stuff like our mattress losing it's shape and stability. A mattress should last longer than 1 1/2 years before it starts caving in and the foam and springs start to give. So disappointed. Asurion Protection is a waste of money.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
They got your back
Hey its worth every penny to get a warranty from this company ya never know what tomorrow brings so yeah
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Very Pleaded!
They covered my purchase as advertised.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
love my new chairs
best darn chairs for big people (450lbs)..iv ever purchased.the fabric is way thicker then the cheaper chairs thats out there.....only thing i have a slight concern about is the connectors ((made of plastic)) which hold the frameing in place....that could lead to a problem....thats what usually fails on most chairs iv purchased in the past...so i bought a 2 year protection plan just for that reason.but if i was to give it a rateing i would give it a 9 out of 10...one more thing if your a tall person its alot easerier to get up out of the chair because it sits higher then cheaper versions.
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Reviewed in the United States on March 12, 2026
★★★★★ 4
Get rid of the automation telephone go to a human being
I wish they would make it just a little bit easier to retrieve your gift card than having to search for it After trying to speak to a human Which was unsuccessful I managed to navigate my way through their AI and get them I managed to navigate my way through their AI and get them to retransmit my gift card. All besides that things work out good got my refund Thank you
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Reviewed in the United States on November 11, 2025