Product Summary

Buick, Chevy, Oldsmobile, Pontiac, Rear Position, Steel

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    Key Specs

    MFG. Part #4048R
    PositionRear
    Spring Rate130 lbs.
    Material TypeSteel
    FinishPowder Coated
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    UMI Performance 4048R Details

    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.

    Designed to maintain the factory muscle car appearance with today’s modern feel.

    Consistent rates and only the best materials (premium Chrome Silicon wire) ensure your cars sits properly for years to come.

    Linear spring rate provides a firm yet comfortable ride and incredible handling.

    No more floating feeling.

    Suitable for Pro-Tour, Auto-x and general cruising.

    Manufactured in the USA.

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    UMI Performance 4048R Specifications

    KEY SPECS
    MFG. Part #4048R
    BrandUMI Performance
    PositionRear
    Spring Rate130 lbs.
    Material TypeSteel
    FinishPowder Coated
    ColorBlack
    Spring Rate Range100 - 199 lbs.
    GENERAL
    Sold in QuantitySet
    Front Suspension HeightFactory Height
    Rear Suspension HeightFactory Height
    Progressive Rate SpringNo
    Bushing IncludedNo

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