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Product Summary

Front Position, Round Rotor Shape, Vented Rotor Type

  • This brake rotor is used for 1974-80 Mustang II applications, using bearing/seal kit 91031000
  • NOT interchangeable with rotor 91031067
  • This brake rotor was OEM on 1975-80 Ford Granada and Mercury Monarch, 1974-77 Ford Maverick and Mercury Caliente/Comet, and 1977-80 Lincoln Versailles
  • Rotor measures 11" in diameter and 0.88" thick
  • Features 1/2"-20 fine threaded wheel studs

Key Specs

PositionFront
Rotor ShapeRound
Rotor Diameter11 Inch
Rotor TypeVented
Rotor StylePlain Face

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Details

This disc brake rotor was OEM on:

  • 1975-1980 Ford Granada
  • 1974-1977 Ford Maverick
  • 1977-1980 Lincoln Versailles
  • 1974-1977 Mercury Caliente, Comet
  • 1975-1980 Mercury Monarch

NOT interchangable with rotor 91031067. If you have the brackets and adapters designed for the Granada rotor, the GM rotor 91031067 will not fit. Very common rotor to use as a conversion rotor.

Specifications

KEY SPECS
MFG. Part #91031066
BrandSpeedway Motors
PositionFront
Rotor ShapeRound
Rotor Diameter11 Inch
Rotor TypeVented
Rotor StylePlain Face
Rotor Material TypeCast Iron
GENERAL
Rotor FinishNatural
Rotor Thickness0.88"
Bolt Pattern5 on 4.5"
Stud Length1.29"
Stud Diameter0.5"
Thread Pitch1/2"-20
Weight20.55 lbs.
Sold in QuantityEach
NotesNOT interchangable with rotor 91031067. If you have the brackets and adapters designed for the Granada rotor, the GM rotor 91031067 will not fit.KNURL DRILL 17/32 (.531)