1969-1972 GM Midsize 11 Inch Brake Rotor, 5 on 4 3/4 Inch

#91065390

1969-1972 GM Midsize 11 Inch Brake Rotor, 5 on 4 3/4 Inch

Name: 1969-1972 GM Midsize 11 Inch Brake Rotor, 5 on 4 3/4 Inch
Brand: Speedway Motors
SKU: 91065390
Price: 76.99 USD
Availability: InStock
Rating: 4.8 (17 reviews)

17 Reviews

5 Questions

We stock those hard-to-find replacement brake rotors for your 1969-1972 GM midsize car
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

Type:

Standard

Drilled/Slotted Drilled/Slotted (Stage 1)Drilled/Slotted (Stage 1.5)

$76.99

/each

In Stock

Quantity

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Product Summary

Front Position, Round Rotor Shape, Vented Rotor Type

We stock those hard-to-find replacement brake rotors for your 1969-1972 GM midsize car
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

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Key Specs

Rotor Diameter	11 Inch
Rotor Style	Plain Face
Rotor Material Type	Cast Iron
Rotor Thickness	1.05"
Bolt Pattern	5 on 4.75"

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Installation Details

Installation Tips

Proper Break-In Procedure for Steel or Cast Iron Rotors

New steel/iron rotors should be bedded in before being used in racing conditions. Proper bedding will prepare the rotor surface, prolong the rotor's life, and make it more resistant to thermal checking or cracking under severe braking conditions. The following procedures should be performed when bedding in both steel and cast iron rotors. It is best to bed in a new rotor using a used set of pads, preferably ones which will not create heat rapidly. Generating heat too rapidly will thermal shock the rotors. Likewise, when bedding in a new set of brake pads it is best to perform the process on a used rotor. This new/used bedding process permits controlled bedding of each individual component.

Make sure rotor surfaces are free from oils, grease, and brake fluid. Run vehicle up to a moderate speed and make several medium deceleration stops to heat up the rotor slowly. This will help reduce the chance of thermal shock caused by uneven heating of the rotor. Pull into the pits and allow the rotor to cool to ambient air temperature. Care should be taken not to ride the brakes into the pits as this may hot spot the rotor causing premature wear to the surface or structural damage.

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Speedway Motors 91065390 Details

We stock those hard-to-find replacement brake rotors for your 1969-1972 GM midsize car. These rotors are specifically designed for the rigors of dirt track racing. Drilled with a 5-on-4.75" bolt circle. Includes 7/16" fine quick-start wheel studs (installed).

1969-1972 GM Midsize
11 Inch Brake Rotor
5 on 4-3/4 Inch
7/16" fine studs installed
11" diameter x 1"
IMCA Approved

This rotor is designed for dirt track applications and should NOT be used for asphalt racing.

Wheel stud info:

.564" knurl
.375" shoulder
7/16"-20 threads
1-5/16" long

Application

This rotor is original equipment on:

1969-1972 Chevelle, Monte Carlo
1969-1974 Nova
1970-1972 Cutlass, 442
1969-1972 GTO, LeMans, Grand Prix
1971-1974 Pontiac Ventura

To use these rotors on any of these cars, you will want to order:

Outer bearing cone 912-TLM11949
Inner bearing assembly 912-TS6 (LM67048/LM67010)
The outer bearing cup in the rotor is the correct one for the application. When it needs to be replaced, use 912-TLM11910
You can purchase the correct inner grease seal for these original applications at your local auto parts store

Replaces factory disc brake rotor on 1967-72 Chevelle/El Camino 1967-69 Camaro and 1968-74 Nova

Can be used to convert a drum brake system from 1964-72 Chevelle/El Camino, 1967-69 Camaro or 1968-74 Nova when used with disc brake spindles such as p/n 910-34900

Works with factory disc brake style spindles such as p/n 910-34900 or our G-Comp spindle 910-35000

CA Prop 65

Speedway Motors 91065390 Specifications

KEY SPECS
MFG. Part #	91065390
Brand	Speedway Motors
Rotor Diameter	11 Inch
Rotor Style	Plain Face
Rotor Material Type	Cast Iron
Rotor Thickness	1.05"
Bolt Pattern	5 on 4.75"

GENERAL
Position	Front
Rotor Shape	Round
Rotor Type	Vented
Rotor Finish	Plain
Flange Diameter	6.46"
Stud Length	0.8"
Stud Diameter	0.44"
Thread Pitch	7/16"-20
Sold in Quantity	Each

Ratings & Reviews

4.8

17 Reviews

Overall Assessment

Customers consistently praise the product for its excellent fit and ease of installation. Particularly for older model vehicles, the product is reported as an exact and seamless replacement for worn components. The product's high quality and solid construction is remarked upon, alongside its significant value for the price. Users have also been especially pleased with how well the product works post-installation, with several ready to repurchase if required. No usability issues or safety concerns were reported, and overall, customers found our product to outshine competitors.

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4.8

17 reviews

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Sort Reviews

Yes

4.0

2 years ago

Honcho

Windham, Ohio

Verified

I got the parts to update my front end brakes , the rotors work out great, quality is what I was looking for

Yes

5.0

2 years ago

Bob

Warrensburg Mo

Verified

Perfect fit

If needed i will buy again

4.0

2 years ago

Steepper

bc Canada

Verified

it fit my truck

Would Recommend

They fit perfectly

5.0

3 years ago

Joel

SUBLIMITY

Verified

They fit perfectly

Would Recommend

11" brake rotors

5.0

4 years ago

David G. FLAGSTAFF

Verified

They work great. Very clean installation.

Would Recommend

An exact fit!

5.0

5 years ago

Chevy Kev

St.Louis,MO

Verified

The rotors I order from Speedway Motors are an exact,perfect replacement for the old worn ones on my '68 Impala. Thanks Speedway Motors!

Would Recommend

An exact fit!

5.0

5 years ago

Wheels

St.Louis,MO

Verified

The '69-72' GM rotors are an exact fit for my 1968 Impala Custom Coupe pre-retro fitted disc brake application. Thanks a million Speedway!

Would Recommend

Great kit

5.0

5 years ago

n/a

Idaho

Verified

This is a great kit

Would Recommend

I will buy this product again

5.0

6 years ago

Big red

San Bernardino ca

Verified

I INSTALLED them in my 59 impala. They work great.

Would Recommend

Fit perfectly

5.0

6 years ago

Sam

Pomona, ca

Verified

Easy to install, parts fit perfectly as if they were meant to be there in the first place. Good quality solid parts. Great brake upgrade for the price.

Would Recommend

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Showing 10 of 17 reviews

Questions & Answers

5 Questions • 5 Answers

Sort Questions

Hey I have some weld draglites I'm wanting to mount on these hubs. Current studs are too short. Do you have a stud a lug nut kit i could buy?

by James Pilley

• 3 years ago

1 answer

View Answer

Can these rotors be use for street use/daily driving? If so what calibers would work with these rotors? I have 37-48 Ford spindles, p/n 7022700 and basic disc brake kit p/n 91631903 Thanks, Bob

by Robert

• 7 years ago

1 answer

View Answer

1969-1972 GM Midsize 11 inch brake rotor, 5 on 4.75". Can these be obtained with a 5 x 5" stud pattern? I have a fatman front clip on a 49 Olds that was installed using this rotor assembly. Is it possible to replace my 5 x 4.75" rotors with these with a 5 x 5" pattern to match the stock rear axle pattern? There does not appear to be wheels available with the combination of these two patterns in the basic chrome smoothie that I am using.

by UncleAl

• 11 years ago

1 answer

View Answer

1980 caprice front rotor 4.75-4.5 Hi ,I'm using the frame and drive train from a 1980 caprice in my build.Right now I have 5 on 5 at the rear axel with adaptors to 5 on 4.5. Now the front is 5 on 4.75 and I don't have room for adaptors,nor are the rotors able to be re-drilled . Is there any rotors available to fit the caprice frame with 5 on 4.5 bolt pattern ? I already have hard to find wheels that I would like to use

by Phantom51

• 11 years ago

1 answer

View Answer

Are inner and outer races for Bearing # 91031051 (Mustang II Spindle) already installed in the hub, or does it come "bare" with no races installed?

• 15 years ago

1 answer

View Answer

5 of 5 questions shown

Fitment

1969-1972 Chevy Brookwood

1969-1972 Chevy Caprice

1969-1972 Chevy Chevelle

1970-1972 Chevy Monte Carlo

1969-1972 Chevy Nova

1970-1971 Oldsmobile 442

1970-1972 Oldsmobile Cutlass

1969-1972 Pontiac Grand Prix

1969-1972 Pontiac GTO

1969-1972 Pontiac LeMans

1971-1972 Pontiac Ventura