Product Summary

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

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    Key Specs

    MFG. Part #4052R
    PositionRear
    Spring Rate130 lbs.
    Material TypeSteel
    FinishPowder Coated
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    UMI Performance 4052R 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. These 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/cruising. They have a tough black powder coat finish and UMI proudly manufactures these premium quality springs in the USA.

    As an industry leader in the muscle car suspension industry, UMI is proud to bring you the best spring in the business.

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

    Linear spring rates (530 lb/in front, 130 lb/in rear) provides a firm yet comfortable ride and incredible handling.

    No more floating feeling.

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

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    UMI Performance 4052R Specifications

    KEY SPECS
    MFG. Part #4052R
    BrandUMI Performance
    PositionRear
    Spring Rate130 lbs.
    Material TypeSteel
    FinishPowder Coated
    ColorBlack
    Spring Rate Range100 - 199 lbs.
    GENERAL
    Sold in QuantitySet
    Rear Suspension Height1.0 Inch Lowered
    Progressive Rate SpringNo
    Bushing IncludedNo

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