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Product Summary

Front Position, Round Rotor Shape, Vented Rotor Type

  • Originally used on 1973 to 1993 Ford F-150 this rotor works well to retrofit on to 1937 to 1948 Ford spindles
  • When used with basic brake kit 91631909 and bearing and seal kit 91031069 this easily converts early Ford spindles to disc brakes
  • 5 on 5-1/2" bolt pattern allows the use of early Ford wire wheels
  • Premium cast iron vented rotor construction dissipates heat to reduce or eliminate brake fade
  • 1/2"-20 thread wheel studs come installed in this rotor to make installation quick and easy

Key Specs

PositionFront
Rotor ShapeRound
Rotor Diameter11.75 Inch
Rotor TypeVented
Rotor StylePlain Face

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Details

5 x 5-1/2". This rotor was originally used on front of most Ford F-150 two wheel drive trucks from 1973 to approximately 1993. 11.75" diameter. 

Specifications

KEY SPECS
MFG. Part #91031068
BrandSpeedway Motors
PositionFront
Rotor ShapeRound
Rotor Diameter11.75 Inch
Rotor TypeVented
Rotor StylePlain Face
Rotor Material TypeCast Iron
GENERAL
Rotor FinishNatural
Rotor Thickness1.2"
Bolt Pattern5 on 5.5"
Flange Diameter2.01"
Stud Length1.05"
Stud Diameter0.5"
Thread Pitch1/2"-20
Weight27.7 lbs.
Sold in QuantityEach
NotesOriginally used on front of most Ford F-150 2WD from '73 to approx. '93 (Aimco 5456, Bendix 141067). Accepts grease cap Motormite/Help # 13973 or Dorman # 616-503.