Product Summary

Ford 9 Inch, Rear Position, 11.44 Inch Rotor Diameter

    Key Specs

    Bolt PatternMulti: 5 on 4.5" | 4.75" | 5"
    Rotor Diameter11.44 Inch
    Rotor TypeSolid
    Caliper PistonsFour

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    Wilwood 140-12552-D Details

    Wilwood's new Billet Dynapro Lug-Drive Dynamic Stainless Alloy Rotor Brake Kits are especially beneficial to cars that rely heavily on the rear brakes for stopping and any other high speed, heavy weight cars that generate above average rear brake heat. The lug-drive rotor mounting system eliminates the rotor bolts and instead, a large single internal snap-ring retains the rotor in the hat, making assembly and installation literally a snap. This system allows the rotors to move independently of the hats as they expand and contract through heat cycles. All thermally generated stress is removed from the rotor attachment points. The rotors stay flatter and run truer. The hats are no longer distorted by stresses generated by thermal expansion and shrinkage of the rotors. Spring-loaded, replaceable stainless steel inserts in each lug-drive slot protect the aluminum hat from wear that would otherwise be caused by loading of the stainless steel rotor against the hat when brake torque is applied. Kits are available in Single and Dual caliper configurations.


    Wilwood 140-12552-D Specifications

    MFG. Part #140-12552-D
    Bolt PatternMulti: 5 on 4.5" | 4.75" | 5"
    Rotor Diameter11.44 Inch
    Rotor TypeSolid
    Caliper PistonsFour
    Caliper FinishAnodized
    Parking Brake ProvisionNo
    Minimum Recommended Wheel Diameter15 Inch
    Rotor StyleDrilled
    Front Rotor IncludedNo
    Front Caliper IncludedNo
    Rear Caliper IncludedYes
    Front Spindles IncludedNo
    Master Cylinder IncludedNo
    Brake Booster IncludedNo
    Rear Rotor IncludedYes
    Rotor Thickness0.35"
    Axle Flange Offset2.50"
    Mount TypeLug
    Total Piston Area4.80 sq. in.
    Piston TypeStainless
    Pad Area6.36 sq. in.
    Pad Volume2.10 cu. in.
    Brake Pad CompoundComposite Metallic
    Caliper TypeDynapro Lug Mount
    Rotor FinishPlain
    Rotor Material TypeSteel
    Vane CountNone
    Hat TypeDynamic Drag Hat - Lug Drive
    Hat FinishBlack E-Coat
    Hat Bolt Circle 35 x 5.00
    Hat Bolt Circle 25 x 4.75
    Hat Bolt Circle 15 x 4.50
    Hat Material TypeAluminum
    Hat Offset Dimension1.64"
    GTIN Code889545016819
    Ford Bearing End StyleBig Ford New Style (Torino)