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  • Corvette C5/C6 Block Discs for 100% LSD Lock - Drift & Drag Ready

    RD6001

    Corvette C5/C6 – Block Disc Kit (100% Lock)

    Transform your Corvette C5 or C6 Limited Slip Differential (LSD) into a permanently locked unit with the RacingDiffs Block Disc kit. Built for drift and drag applications, it delivers a welded-diff feel—without the risk of cracking or permanent modifications.

    Why choose RacingDiffs Block Discs?
    • 100% permanent lock: Puts power down evenly to both wheels—no slip, no delay.
    • Easy, reliable solution: Factory Corvette LSDs are tough to weld; this kit locks the diff without welding.
    • Track-proven performance: Consistent traction for launches and stable drift angles under high load.
    • Reversible: Remove the discs and reinstall clutches to return to LSD operation if desired.
    • Lifetime Warranty: Covered by RacingDiffs Unlimited Lifetime Warranty for peace of mind.
    Kit includes
    • 15 × Block discs (complete pack to achieve 100% lock)

    No machining or welding required.

    Fitment
    • Chevrolet Corvette C5 (factory clutch-type LSD)
    • Chevrolet Corvette C6 (factory clutch-type LSD)

    Direct replacement for stock clutch plates inside the OEM LSD carrier.

    Usage notes & related upgrades
    • Intended use: Drift/drag and off-street applications. A fully locked differential can affect street drivability and tire wear.
    • Prefer to keep LSD behavior? Upgrade clutches instead of locking the unit: Corvette C5/C6 LSD Upgrade Kit.

    Unlock consistent traction and control: the RacingDiffs Block Disc kit is the simplest, strongest path to a welded-diff feel for your Corvette C5/C6—minus the welds.