Product Summary

Front Position, Round Rotor Shape, Vented Rotor Type

  • Forged of natural cast iron, our GM Metric Stock Car disc brake rotor give you the stopping power you need for every race
  • This kit includes a GM Metric Stock Car Disc Brake Rotor, Replacement Inner Seal, Chassis Outer Wheel Bearing, & Tapered Inner Wheel Bearing
  • Our rotor is a 1979-81 Metric GM style with the bolt pattern changed to 5 on 4-3/4" with 5/8"-11 wheel studs
  • Measures of 10.5" diameter and is 1" thick with ventilation for better brake cooling
  • Weighs a total of 18.15 lbs. and is IMCA approved for dirt track racing only, it should not be used for asphalt racing

Comes as a Kit

Key Specs

Rotor ShapeRound
Rotor Diameter10.50 Inch
Rotor TypeVented
Rotor StylePlain Face

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 Kit Includes:

  • (1) GM Metric Car Disc Brake Rotor
  • (1) Metric Spindle Replacement Inner Seal 
  • (1) Metric Spindle Chassis Outer Wheel Bearing
  • (1) Metric Spindle Tapered Inner Wheel Bearing

GM Metric Disc Brake Rotor

This 1979-up GM Metric front disc brake rotor will work with a Set # 6 inner bearing/race which fits most spindles. 5 on 4-3/4" with 5/8"-11 studs installed. 10.5" diameter x 1".  Must be used with 912-TS3 outer bearings for 1982-1987 spindle applications.  IMCA Approved.

This is a 1979-1981 Metric GM rotor with the bolt pattern changed to 5 on 4-3/4". It can be used on 1982-1987 GM metric spindles if you use our bearing/seal kit 91031048, or use at least the 1979-1981 style outer bearing 912TS3.

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

  • Position: Front
  • Rotor Shape: Round
  • Rotor Diameter: 10.50 Inch
  • Rotor Type: Vented
  • Rotor Style: Plain Face
  • Rotor Material Type: Steel
  • Rotor Finish: Natural
  • Bolt Pattern: 5 on 4.75"
  • Thread Pitch: 5/8"-11
  • Notes: Designed for dirt track applications.

Metric Chassis Replacement Inner Seal

  • Overall Thickness: .23"
  • Inside Diameter: 2.00"
  • Outside Diameter: 2.56"

Metric Spindle Chassis Outer Wheel Bearing

Replacement outer wheel bearing for 1975-1981 Ford Granada style rotors. Includes M12649 outer bearing cone, M12610 outer bearing cup.

  • Overall Diameter: 1.969"
  • Diameter Big End: 1.681"
  • Diameter Small End: 1.494"
  • Overall Width: .720"
  • Race Included: Yes

Metric Spindle Chassis Outer Wheel Bearing

Includes 912TLM67048 outer bearing cone, 912TLM67010 outer bearing cup.

  • Cone ID: 1.245"
  • Cup OD: 2.33"
  • Race Included: Yes
  • Material Type: Steel
  • Inside Diameter: 1.25"
  • Outside Diameter: 2.33"



BrandSpeedway Motors
Rotor ShapeRound
Rotor Diameter10.50 Inch
Rotor TypeVented
Rotor StylePlain Face
Rotor Material TypeSteel
Rotor FinishNatural
Bolt Pattern5 on 4.75"
Sold in QuantityKit