Product Summary

Universal Fit, Front Position, Round Rotor Shape, Plain

  • 1973-1977 GM rotor redrilled to the 5 x 4-1/2" Ford bolt pattern
  • To be used with our #7024475 GM metric caliper adapter kit
  • Very common rotor to use as a conversion rotor
  • 1/2" fine wheel studs
  • Use caliper adapter kit 7024475 for disc brakes on '37-'48 Ford car spindles
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Key Specs

Rotor Diameter11 Inch
Rotor StylePlain Face
Rotor Material TypeCast Iron
Rotor Thickness1"
Bolt Pattern5 on 4.5"
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91031067 Details

1973-1977 GM rotor redrilled to the 5 x 4-1/2" Ford bolt pattern. To be used with our part # 7024475 GM metric caliper adapter kit for disc brakes on a 1937-1948 Ford car spindle. Very common rotor to use as a conversion rotor. Has 1/2" fine wheel studs.

This is NOT interchangable with rotor 91031066. If you have brackets and adapters designed for the Granada rotor, use Part # 91031066.

Replacement studs are # 910610345.

Additional Note: If you require this rotor with the 5 on 4-3/4" GM bolt pattern see Part # 91031063.

 

Speedway Motors 91031067 Specifications

KEY SPECS
MFG. Part #91031067
BrandSpeedway Motors
Rotor Diameter11 Inch
Rotor StylePlain Face
Rotor Material TypeCast Iron
Rotor Thickness1"
Bolt Pattern5 on 4.5"
GENERAL
PositionFront
Rotor ShapeRound
Rotor TypeVented
Rotor FinishPlain
Flange Diameter6.42"
Stud Length1.5"
Stud Diameter0.5"
Thread Pitch1/2"-20
Weight21.65 lbs.
Sold in QuantityEach

Ratings & Reviews

4.7

23 Reviews

Overall Assessment

Customers consistently praise the product's excellent quality, perfect fit, and practical usability. They highlight the well-made, sturdy material and commend the product's great machining. Users often note the convenience of the interchangeable parts, emphasizing the ease of setup and the product's capability to adeptly change bolt patterns. Several customers express satisfaction with how it enables safe and cost-effective modifications to their cars. As a well-recommended product, it saves users from having to purchase new wheels or make additional modifications. Customers deem it to be an invaluable, superior choice for upgrading to disc brakes. Overall, the product shines for its feature-rich quality and exceptional performance.

4.7

23 reviews

5

21

4

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3

1

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1

Most Liked Positive Review

5.0

Gotta love interchangeable parts

I had the Speedway brake kit on my roadster with Chevy wheels. I wanted to swap wheels from my other car onto the roadster but the wheels are Ford. By swapping rotors I was able to install the Ford wheels on my roadster, saving the cost of new wheels, for nearly the same cost as wheel adapters, but more safely and without adding to the width.

Most Liked Negative Review

1.0

Does not work on my application

Originally installed Speedway MSll components years ago. Cannot change to different bolt pattern without changing brake caliper mounting brackets and other modifications. Had to use adapters

Filter by Ratings

Yes

5.0

5 months ago

Use real name

Tallahasse Fl

Verified

It worked fine.

I would buy again

5.0

6 months ago

Rats

Hilo Hawaii

Verified

Exactly what I needed. Had a set of old school rims I wanted to use but had different bolt pattern. These rotors made it possible to use them. A lot safer than using adapters.

Would Recommend

Good rotors

5.0

6 months ago

Stude man

Port Charlotte, FL

Verified

Took a couple tries to get the correct dust caps and seals for this rotor.

Would Recommend

Great price 31 ford RAT ROD

5.0

a year ago

Rat Rod

Trinidad Tx

Verified

This work great on my 31 ford drop axel form speedway , the hub is well made looks great !

Would Recommend

Brake rotors

5.0

a year ago

Crazy Hessy

Ohio

Verified

I bought these rotors to change from 5 and 43/4 bolt pattern to five and 4 1/2, needed ford bp. These fit perfect very simple swap.

Would Recommend

Yes

5.0

2 years ago

Mike

St Cloud Fl.

Verified

Great product

Would Recommend

I would buy these rotors again

5.0

2 years ago

Mikey

Mesquite texas

Verified

These new rotors were beautiful when they showed up and top quality!!!

Would Recommend

Great fit as promised. For my 28 Tudor

5.0

3 years ago

Al

Soo Ontario Canada

Verified

Brake Shoes

Would Recommend

Does not work on my application

1.0

4 years ago

Steve

Texas

Verified

Originally installed Speedway MSll components years ago. Cannot change to different bolt pattern without changing brake caliper mounting brackets and other modifications. Had to use adapters

Would Not Recommend

The rotors seem to be well made

5.0

4 years ago

RestoRod

Virginia

Verified

The rotors seem to be well made.

Would Recommend

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Showing 10 of 23 reviews

Questions & Answers

41 Questions • 13 Answers

With this standard rotor drilled to 5x4.5 bolt pattern fit my 1977 Camaro?

by TFNR

• 3 months ago

1 answer

Will these work on a gm metric spindle?

by Hunter

• 4 years ago

1 answer

Will this fit a 69 firebird? Looking to change front to a 4.5 bolt pattern.

by Bryan

• 6 years ago

1 answer

Does this fit a 76 c10.

by Ishperez83

• 7 years ago

1 answer

I purchased and have been using front brake kit #91031942 for a couple years. It has 5 on 4.75 bolt pattern. Will these rotors swap in so I can get the proper 5 on 4.5 ? Or can you tell me the part number for the right rotors if available? Thanks

by William

• 7 years ago

1 answer

Part 91031067 rotors. Will these rotors work on a 98 chevy s10 2wd? I want to change my front bolt pattern to 5x4.5. Thanks

by Daemian

• 7 years ago

1 answer

What is the distance from the shoulder of the inner bearing to the shoulder on the outer bearing on the spidle that this is meant for? Thanks for your help

by Paul

• 8 years ago

1 answer

I have early 50s GM spindles. Will these work?

by Pinck

• 8 years ago

2 answers

Would this work on a 67-69 Camaro or 1971 nova? If not, is there one available that will?

by AshleyJNC

• 8 years ago

2 answers

Okay so I have a 1972 c10 will this work for front and back of the truck or just the front.

by Ty

• 8 years ago

2 answers

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