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Street Race Truck More... The Toolbox
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$49.99
$39.99
1969-1972 GM Midsize 11 Inch Brake Rotor, 5 on 4 3/4 Inch
1969-1972 GM Midsize 11 Inch Brake Rotor, 5 on 4 3/4 Inch

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

Brookwood, Caprice, Chevelle, Monte Carlo, Nova, 442, Cutlass, Grand Prix, GTO, LeMans, Ventura

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1969-1972 GM Midsize 11 Inch Brake Rotor, 5 on 4 3/4 Inch
1969-1972 GM Midsize 11 Inch Brake Rotor, 5 on 4 3/4 Inch
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Part # 91065390
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Important Messages:

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

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:
1.05"
Bolt Pattern:
5 on 4.75"
Flange Diameter:
6.46"
Stud Length:
0.80"
Stud Diameter:
0.44"
Thread Pitch:
7/16"-20
MFG. Part #:
91065390
Sold in Quantity:
Each
Notes:
STUDS 91005908 CUP 912TLM67010 CUP 912TLM11910

Info

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
  • 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

Notes

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.
Some parts are not legal for use in California or other states with similar laws/regulations

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  • We get a lot of questions about brake kits so Tim gives a brief overview of disc brake setups.
  • If you're changing your brake pads before you hit your first race, it's important to burnish or bed-in your new pads. Check out our quick tech-tip on bedding brakes and how to minimize pad wear and get the best performance out of your brakes.
  • After getting the control arms and drop spindles installed last time, we are dying to see what it looks like on the ground. Today we are working with the Speedway Deluxe Disc Brake Kit. Josh and Joe are on a roll!

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