Menu

Shop

Garage

Cart

Account

Product Summary

Front Position, Round Rotor Shape, Vented Rotor Type

  • This factory replacement 11" front disc brake rotor fits 1973 to 1977 GM midsize cars
  • Premium cast iron vented rotor construction dissipates heat to reduce or eliminate brake fade
  • OEM size 5 on 4-3/4" bolt circle makes this a direct replacement
  • Includes 7/16" fine thread wheel studs (installed)
  • New bearing races come installed in this rotor with bearing and seal kits available separately to complete the installation

Key Specs

PositionFront
Rotor ShapeRound
Rotor Diameter11 Inch
Rotor TypeVented
Rotor StylePlain Face

Need To Know

Free Shipping on Orders Over $149

Shipping Policies & FAQs

Quick and Easy Returns

Return Policy

Details

This factory replacement 11" front disc brake rotor fits 1973-77 GM midsize chassis. Has a 5 on 4-3/4" bolt pattern.

Application

  • 1973-1977 Buick Century, Regal
  • 1975-1978 Buick Skylark
  • 1970-1978 Chevy Camaro
  • 1977-1978 Chevy Full Size
  • 1973-1977 Chevy Malibu, Monte Carlo 
  • 1975-1978 Chevy Nova  
  • 1973-1977 Oldsmobile Cutlass
  • 1970-1978 Pontiac Firebird
  • 1973-1977 Pontiac Grand Prix, LeMans, GTO
  • 1975-1978 Pontiac Ventura, Phoenix

Specifications

KEY SPECS
MFG. Part #91031063
BrandSpeedway Motors
PositionFront
Rotor ShapeRound
Rotor Diameter11 Inch
Rotor TypeVented
Rotor StylePlain Face
Rotor Material TypeCast Iron
GENERAL
Rotor FinishNatural
Rotor Thickness1"
Bolt Pattern5 on 4.75"
Flange Diameter6.44"
Stud Length0.94"
Stud Diameter0.44"
Thread Pitch7/16"-20
Sold in QuantityEach
NotesMax outer bearing snout diameter is 2.78".KNURL DRILL 33/64 (.515)