Product Summary

Front Position, Dual: 5 on 5" | 4.75" Bolt Pattern

    Key Specs

    Bolt PatternDual: 5 on 5" | 4.75"
    Rotor Diameter11.86 inch
    Rotor TypeVented
    Caliper PistonsSix

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    Wilwood 140-14974 Details

    Wilwood's Classic Series front disc brake kits for Chevrolet and GMC 1/2 ton trucks from 1951 to 1959 offer disc brake upgrade solutions for OEM Drum spindles. A completely new kit design, featuring a one-piece 11.86" x 1.10” rotor and hub assembly with a dual 5 x 4.75" and 5 x 5.00" wheel bolt circle. Based on the venerable Forged Billet Dynapro 6 caliper, these versatile kits are easily optioned to suit the braking requirements and style preferences for a daily driver or the most discriminating show enthusiast. Intended vehicle applications require no modifications for installation, and should provide plenty of clearance inside popular 15" wheels. DP6 1 piece kits can be used with either manual or power boost master cylinders. Kits come complete with calipers, rotors and hub assembly, brackets, brake line kit, and hardware.


    Wilwood 140-14974 Specifications

    MFG. Part #140-14974
    Bolt PatternDual: 5 on 5" | 4.75"
    Rotor Diameter11.86 inch
    Rotor TypeVented
    Caliper PistonsSix
    Caliper FinishPowder Coated
    Parking Brake ProvisionNo
    Minimum Recommended Wheel Diameter15 Inch
    Rotor ShapeRound
    Hardware IncludedYes
    Spindle TypeFactory Drum Spindle
    Rotor StylePlain Face
    Front Rotor IncludedYes
    Front Rotor Diameter11.86 inch
    Front Caliper IncludedYes
    Front Caliper Piston Quantity6
    Front Caliper FinishPowder Coated
    Rear Caliper IncludedNo
    Front Spindles IncludedNo
    Master Cylinder IncludedNo
    Brake Booster IncludedNo
    Brake Hoses IncludedYes
    Rear Rotor IncludedNo
    Rotor Thickness1.1"
    Track Width Increase0.50"
    Sold in QuantityKit
    NotesMay fit 15" wheels. Refer to wheel clearance diagram to check your specific wheel
    Mount TypeDirect / Adapter
    OE Hub Offset0.25"
    Total Piston Area5.06 sq. in.
    Piston TypeStainless
    Pad Area7.3 sq. in.
    Pad Volume2.4 cu. in.
    Brake Pad CompoundBP-10
    Caliper TypeLug
    Rotor FinishPlain
    Rotor Material TypeIron
    Vane Count36 Straight Vane
    GTIN Code889545085662
    Front Caliper MaterialForged Billet Aluminum
    Brake Lines IncludedYes
    Parking Brake Cables IncludedNo
    Brake Hose MaterialStainless Steel Braided
    Mounting Bracket IncludedYes
    Brake Pedal Rod IncludedNo
    Caliper ColorBlack
    Caliper Material TypeForged Aluminum