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Product Summary

Universal Fit, Two Caliper Pistons, 1.25" Bore Size

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    Key Specs

    MFG. Part #120-10938-RD
    Caliper PistonsTwo
    Parking Brake ProvisionNo
    Fittings IncludedNo
    Brake Pads IncludedNo
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    Wilwood 120-10938-RD Details

    The D52 caliper is a direct bolt-on 2 piston replacement for the factory original single calipers on many 1968-96 GM Passenger Vehicles and Trucks. Forged billet aluminum bodies, stainless steel pistons, and competition style high-temperature seals put and end to the rust, bore pitting, and seal failures that plague the OE caliper design. D52 calipers provide low-maintenance performance and a huge weight savings with high temperature reliability for the street and track. D52 calipers mount in the stock location over stock rotors, use the original style OE D52 brake pads and an OE 7/16-20 banjo bolt brake line. Calipers can be used with most wheels that clear the OE calipers. The rear calipers with 1.25 piston provide 2.46 cubic inches of piston area per caliper, to maintain the original front to rear brake bias and use of the OE master cylinder. D52 Calipers come hardened slide pins.

    Wilwood 120-10938-RD Specifications

    KEY SPECS
    MFG. Part #120-10938-RD
    BrandWilwood
    Caliper PistonsTwo
    Parking Brake ProvisionNo
    Fittings IncludedNo
    Brake Pads IncludedNo
    Material TypeAluminum
    GENERAL
    Piston Diameter1.25"
    Caliper Material TypeAluminum
    Caliper ColorRed
    Bracket IncludedNo
    Caliper Mounting TypeFloating
    Rotor Diameter12.19 Inch
    Mounting SideUniversal
    Bore Size1.25"
    ColorRed
    Centerline of Holes7.06"
    Thread Pitch7/16"-20
    Rotor Thickness1.28"
    FinishPowder Coated
    Bore 2 Size1.25"
    Total Piston Area2.46 sq. in.
    Mount Hole Size0.69"
    Mounted Height0.77"
    Pad Area10 sq. in.
    Pad Volume3.90 cu. in.
    GTIN Code889545001112
    NotesFits GM vehicles from 1968-96 that have factory D52 single piston calipers. The caliper inlet port is threaded for use with a 7/16-20 banjo bolt or a line adapter using crush washers as a seal. The OE rubber lines can be used from any vehicle equipped with a 7/16-20 banjo. For later model vehicles that were originally equipped with metric connections, a new line kit will be required.
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