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  • Ford Mustang - High-Performance Clutch Plate Kit for 28 Spline Traction-LOK LSD

    RD4039

    Differential type

    Ford Mustang 8.8 Traction-LOK LSD Clutch Plate Kit

    High Performance Limited Slip Differential Upgrade by RacingDiffs

    Upgrade your Ford Mustang limited slip differential with RacingDiffs high-performance clutch plates designed for the Ford 8.8 inch Traction-LOK differential.

    This kit is a direct replacement for OEM clutch plates used in Mustang models equipped with 28-spline Traction-LOK differentials. Our friction plates feature a friction coefficient up to three times higher than factory plates, significantly improving traction and durability.

    Lifetime Warranty | Direct Bolt-In Installation

    Vehicle Fitment

    This clutch plate kit fits:

    • Ford Mustang (1985–2014)
    • Ford 8.8 inch Traction-LOK Limited Slip Differential
    • 28-spline differential units

    *Compatible with Traction-LOK / Posi limited slip differentials.

    Kit Contents
    • High-performance friction clutch plates
    • Dog ear steel separator plates

    All components are engineered as a direct replacement for the factory clutch pack.

    Performance Benefits
    • Higher friction coefficient
      Up to three times more grip compared to factory clutch plates.
    • Improved differential lock
      Provides stronger traction under acceleration.
    • Longer service life
      Designed to outperform OEM clutch packs under demanding conditions.
    • Improved power transfer
      Helps both wheels deliver power more efficiently.
    Key Engineering Features
    1. Solid plate construction

      Prevents separation of the friction layer, a common issue found with factory clutch plates.

    2. Molybdenum-Ceramics friction layer

      Provides optimal friction characteristics and exceptional wear resistance under high load.

    3. Direct OEM replacement

      Designed to install into the factory Mustang Traction-LOK differential without modification.

    Why Choose RacingDiffs
    • Lifetime warranty
      Designed for long-term reliability and performance.
    • Track-tested design
      Used in high-performance and motorsport applications.
    • Superior durability
      Improved friction material dramatically increases service life.
    • Plug-and-play installation
      Fits OEM Traction-LOK differential carriers.
    Recommended Differential Oil

    For optimal LSD performance we recommend:

    Motul Gear Competition 75W140

    This oil provides excellent lubrication and stable friction characteristics for clutch-type limited slip differentials.

    OEM Reference Part Number

    M-4700-C

    Upgrade Your Mustang Differential

    Restore the locking capability of your Mustang differential and dramatically improve traction with RacingDiffs high-performance clutch plates.

    Engineered for durability, stronger lock and improved driving performance.