Product Summary

Buick, Chevy, Oldsmobile, Pontiac, Front Position

    Key Specs

    Spring Rate300 lbs.
    Shock AdjustabilityDouble Adjustable
    Shock TypeTwin Tube
    Shock Body MaterialAluminum

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    QA1 GD401-11300A Details

    The QA1 GM Pro Coil System is a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling.

    Specially designed for QA1's Pro Coil Systems, the American-made lightweight high travel springs have fewer coils and a smaller wire diameter, resulting in increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance. Multiple spring rate options are also available and have been successfully tested in various applications, from casual street driving to hard core race applications.

    Adjustable Pro Coil System Features:

    • Available in independent compression and rebound double adjustable, simultaneous compression and rebound adjustable, or drag "R" Series adjustable
    • Lightweight Billet Aluminum Coil-Over Shocks
    • High Travel Springs
    • Easy, Bolt-In Installation
    • Ride Height Adjustable
    • 100% Dyno Tested and Serialized
    • Serviceable and Rebuildable by QA1 Authorized Service Centers
    • Made in the USA
    • Used in drag racing, street performance, autocross, road racing and street rod applications

    Fits: 1967-1969 Chevy Camaro, Pontiac Firebird; 1968-1974 Chevy II, Nova; 1973-1974 Buick Skylark, Buick Apollo, Oldsmobile Omega; 1971-1974 Pontiac Ventura

    QA1 GD401-11300A Specifications

    MFG. Part #GD401-11300A
    Spring Rate300 lbs.
    Shock AdjustabilityDouble Adjustable
    Shock TypeTwin Tube
    Shock Body MaterialAluminum
    Shock Stroke4.00
    Upper Shock MountStud
    Lower Shock MountT-Bar
    Speedway Motors Catalog Part #721-GD40111300A
    Compressed Length Range8.00" to 8.99"
    Compressed Length8.63"
    Extended Length Range12.00" to 12.99"
    Extended Length12.88"
    Number of Valving Selections324
    Coilover Springs IncludedYes
    Bushing MaterialPolyurethane
    Body Diameter2.00"
    Sold in QuantityKit
    Hardware IncludedYes
    Crossmember IncludedNo
    Welding RequiredNo
    Gas ChargedNo
    Mounting Bracket IncludedNo
    Spring FinishPowder Coated
    NotesDouble adjustable coil-overs, designed to fit applications with small block engines.
    GTIN Code806990062413