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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
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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.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
4.5 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Silly book
Format: Paperback
My kid loves these books, a little on the pricey side but the giggle while reading them are so worth it
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Reviewed in the United States on June 25, 2025
★★★★★ 5
Adorable book
Format: Board book
Adorable gift idea . Cute book for a dad , thick pages , toddler proof so far
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Very cute fathers’ day book
Format: Board book
Very cute fathers’ day book for our tool-obsessed toddler.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Best Father’s Day book
Format: Board book
Perfect first Father’s Day gift for my husband!
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Reviewed in the United States on November 1, 2025
★★★★★ 5
Perfect!
Format: Board book
What cute book! Our whole family enjoys it. Sturdy board book as well
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Reviewed in the United States on February 20, 2026