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Product Summary

Front Position, 11.25 Inch Rotor Diameter, Natural

  • Replace those outdated and inadequate drum brakes on your vintage Ford Mustang
  • This manual, non-power disc brake kit for 1964-1966 Mustang uses a 5 on 4-1/2" bolt pattern and will fit inside 14" x 7" or larger wheels
  • Only works on V8 drum brake spindles
  • Master cylinder will not bolt to stock booster on vehicles with O.E. power drum brakes
  • Features 43mm Four-Piston Calipers

Comes as a Kit

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Key Specs

MFG. Part #91031971
PositionFront
Rotor Diameter11.25 Inch
Rotor TypeVented
Caliper PistonsFour
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Need To Know

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Speedway Motors 91031971 Details

Replace those outdated and inadequate drum brakes on your vintage Ford Mustang with this complete, easy-to-install disc brake conversion kit. This manual, non-power disc brake kit for 1964-1966 Mustang uses a 5 on 4-1/2" bolt pattern and will fit inside 14" x 7" or larger wheels.

  • Only works on V8 drum brake spindles. 
  • Master cylinder will not bolt to stock booster on vehicles with O.E. power drum brakes.
  • Fits inside 14" x 7" or larger wheels

Kit includes:

  • 43mm Four-Piston Calipers
  • Vented Rotors
  • Pads
  • Mounting Brackets
  • Proportioning Valves
  • Dual Bowl Master Cylinder
  • Flex Hoses
  • Lines
  • Bearings & Seals
  • All hardware included

Application

  • 1964-1966 FORD MUSTANG  
  • 1964-1966 FORD FAIRLANE
  • 1964-1966 FORD FALCON 
  • 1964-1965 FORD FALCON SEDAN DELIVERY
  • 1964-1966 FORD RANCHERO
  • 1964-1966 MERCURY COMET 

Specs

  • Caliper Specs
    • Number of Pistons: 4
    • Piston Size: 43mm
    • Constructed From: Cast Iron
  • Rotor Specs
    • Diameter: 11.25"
    • Thickness 0.8125" 
    • Venting: Uni-directional (straight vane) 
    • Finish: Standard
    • Bolt Pattern: 5 x 4.5"
  • Minimum wheel size: 14" x 7"

Speedway Motors 91031971 Specifications

KEY SPECS
MFG. Part #91031971
BrandSpeedway Motors
PositionFront
Rotor Diameter11.25 Inch
Rotor TypeVented
Caliper PistonsFour
Caliper FinishNatural
ColorNatural
Parking Brake ProvisionNo
Minimum Recommended Wheel Diameter14 Inch
Rotor ShapeRound
Hardware IncludedYes
Front Rotor IncludedYes
Front Rotor Diameter11.25 Inch
Front Caliper IncludedYes
Rear Caliper IncludedNo
Front Spindles IncludedNo
Master Cylinder IncludedYes
Brake Booster IncludedNo
Rear Rotor IncludedNo
Bolt Pattern5 on 4.5"
Front Caliper FinishNatural
Front Caliper Piston Quantity4
GENERAL
Sold in QuantityKit
NotesIncludes master cylinder, rotors, calipers, backing plates, pads, bearings and seals, and hoses.
Rotor Thickness0.81"

Fitment

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