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1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor

1973-77 GM Midsize 11 Inch Disc Brake Rotor

Front Position, Round Rotor Shape, 11 Inch Rotor Diameter, Vented Rotor Type, Cast Iron

6 Reviews | 5 Answered Questions
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1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
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1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
1973-77 GM Midsize 11 Inch Disc Brake Rotor
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Part # 91031063
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$54.99
$61.00
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  • 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

Details

Position:
Front
Rotor Shape:
Round
Rotor Diameter:
11 Inch
Rotor Type:
Vented
Rotor Style:
Plain Face
Rotor Material Type:
Cast Iron
Rotor Finish:
Natural
Rotor Thickness:
1"
Bolt Pattern:
5 on 4.75"
Flange Diameter:
6.44"
Stud Length:
0.94"
Stud Diameter:
0.44"
Thread Pitch:
7/16"-20
MFG. Part #:
91031063
Sold in Quantity:
Each
Notes:
Max outer bearing snout diameter is 2.78".KNURL DRILL 33/64 (.515)

Info

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

Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

Reviews

Q & A

Videos & Articles
  • We offer a guide to follow when selecting a new set of brake pads for your race car. It's important to know the friction quality and pad size before selecting a new set of racing pads.
  • Just about any classic vehicle’s drum brakes can be upgraded to the increased braking performance of a disc brake system. Our Buyer’s Guide provides an overview of disc brake benefits and what you need to succeed with your upgrade.
  • When it comes to a traditional style build on an early hot rod it just has to be rolling on a solid front axle of some sort. In this buyer's guide we take you through I-beam and round tube solid axles, spindle choices, radius rod needs, and more.

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