Product Summary

Universal Fit, Twin Tube Shock Type, Front Position

    Key Specs

    Shock TypeTwin Tube
    Shock AdjustabilityNon-Adjustable
    Shock Body MaterialSteel
    Body Diameter2.0625"
    Shock Body TypeSmooth

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    QA1's rebuildable twin tube shocks offer the performance, consistency and tunability racers demand.

    Formerly known as 51 and 53 series shocks, the 5Q series is a large body steel shock available in both bearing mount and stock mount configurations. Choose from 7" and 9" bearing mount bodies or various stock mounted lengths depending on rules and applications. Shocks are also available with rebound adjustable piston rods to adjust valving at the track.

    Small details add up to provide great overall performance. The black zinc coating ensures a very consistent finish, creating a tight seal every time. The scalloped base loop increases clearances in tight areas like upper control arms and shock mounts. Pistons are made of high-quality raw aluminum, minimizing variations that can be found in anodized parts. You can valve the shock with bleed shims or drill out bleeds to maximize tunability.

    • 9" Twin tube 2-1/16" big body diameter shock with T-bar bottom / stud top mounts
    • 5Q shocks can be re-valved and rebuilt by racers in a matter of minutes using basic tools
    • Two-piece bodies make it simple to disassemble and reassemble shocks
    • The gland features relief cuts and a hyper screw port, making shocks easy to fill and bleed on assembly.
    • An upgraded seal kit minimizes leaks-especially in high-rebound applications
    • The compression tube uses a slip fit design to simplify the rebuild process
    • 5Q shocks utilize a laser-engraved, black-anodized closure nut to make serial numbers and valving easy to read at the track or in the shop

    QA1's steel body shocks can be used in coil-over configurations using the appropriate kits (sold separately). Racers can rebuild and re-valve their own shocks using available tuning and rebuild kits.

    Type: Twin Tube
    Body Diameter: 2-1/16"
    Body Material: Steel
    Body Finish: Black zinc
    Threaded Body: No
    Mounting: Bearing Mount
    Adjustable Valving: Non-adjustable
    Piston: Linear or Linear Digressive
    Base Valve: Yes
    Gas Charged: No
    Coil-Over Compatible: Yes
    CK5Q70 – 2-1/2" ID Spring, 7" shock
    CK5Q71 – 5" OD Spring, 7" Shock
    CK5Q90 – 2-1/2" ID Spring, 9" Shock
    CK5Q91 – 5" OD Spring, 9" Shock
    Applications: Street Stock, Hobby Stock, B-Mod/Sport Mod, Modified


    Shock TypeTwin Tube
    Shock AdjustabilityNon-Adjustable
    Shock Body MaterialSteel
    Body Diameter2.0625"
    Shock Body TypeSmooth
    Shock Body SizeLarge Body
    Shock Stroke Range4.00" to 4.99"
    Compression Valving3
    Rebound Valving8
    FinishZinc Plated
    Gas ChargedNo
    Shock Stroke4.00
    Upper Shock MountStud
    Lower Shock MountT-Bar
    Coil-Over CompatibleYes
    NotesGM Metric front stock mount 4" stroke
    GTIN Code806990165503