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
1973-77 GM Midsize 11 Inch Disc Brake Rotor Speedway Motors
1973-77 GM Midsize 11 Inch Disc Brake Rotor
Sku # 91031063
Mfr. Part # 91031063
Condition
New
Brand
Speedway Motors
Sold
Each
Details
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
This Part Fits
  • 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
Specs
Sold in Quantity
Each
Bolt Pattern
5 on 4.75"
Rotor Diameter
11 Inch
Rotor Shape
Round
Rotor Style
Plain Face
Rotor Finish
Natural
Thread Pitch
7/16"-20
Stud Length
0.94
Stud Diameter
0.44
Flange Diameter
6.44
Rotor Thickness
1
Position
Front
MFG. Part #
91031063
Rotor Type
Vented
Rotor Material Type
Cast Iron
Notes
Max outer bearing snout diameter is 2.78".KNURL DRILL 33/64 (.515)
Reviews

The right part - fast!

Rated
Product Rating
by Rocky on November 18, 2018

Summary: Fall is the time to update the toyz! Speedway is place to score the parts!

Yes, I recommend this product.

These parts was a dream to work with

Rated
Product Rating
by Rod on May 28, 2018

Summary: still working on the 1931 ford

Yes, I recommend this product.

I would buy this product again

Rated
Product Rating
by Drweld on September 08, 2017

Summary: I received the products and one was damaged. I called them and I had the replacement three days later. The parts fit perfect and would definitely buy them again! Great service department!

Yes, I recommend this product.

Rotor

Rated
Product Rating
by HktrodMan on August 12, 2017

Summary: Nice part. Virtually the same as you would get from a parts store.

Yes, I recommend this product.

Perfect fit

Rated
Product Rating
by Titans38 on March 01, 2016

Summary: Product is just as advertised.

Pros: Easy Install

Yes, I recommend this product.

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Tech Support
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.