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Product Summary

GM 7.5 Inch 10-Bolt, Rear Position, Vented Rotor Type

  • If you don't want to spend an arm and a leg on a rear disc brake kit but want the ease of a bolt on system then this is the kit for you!
  • Fits GM 7.5" 10 bolt rear ends such as found in 1978 to 1988 G body cars
  • Includes two bolt-on caliper brackets, two vented rotors, two new GM metric calipers and hardware
  • Rotors have both 5 on 4-1/2" and 5 on 4-3/4" to accommodate a variety of wheels
  • Fits axle with a maximum flange diameter of 6-1/4" OD and brake register size of 2.78" or smaller

Comes as a Kit

Key Specs

MFG. Part #91031923
BrandSpeedway Motors
PositionRear
Rotor Diameter11.63 Inch
Rotor TypeVented

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Details

If you dont want to spend and arm and a leg on a rear disc brake kit and still have to weld the bracket on, weve got you covered. This kit includes two bolt-on caliper brackets, two 11-5/8" vented rotors, two GM metric style calipers, brake pads and hardware.

  • 5 on 4-3/4" bolt circle
  • Fits over an axle with a maximum flange diameter of 6" O.D.
  • 2.872" rotor center hole
  • Requires a minimum 14-5/8" I.D. for caliper clearance 
  • Brake calipers feature 7/16"-20 inlet thread

Item Details

With Non-Emergency Brake Calipers

Charts

Specifications

KEY SPECS
MFG. Part #91031923
BrandSpeedway Motors
PositionRear
Rotor Diameter11.63 Inch
Rotor TypeVented
GENERAL
Bolt Pattern5 on 4.75"
Caliper PistonsOne
Caliper FinishNatural
ColorNatural
Parking Brake ProvisionNo
Rotor Thickness.78"
Rotor ShapeRound
Rotor I.D.2.78"
Rotor Backspace1.75"
FinishNatural
Hardware IncludedYes
Sold in QuantityKit
NotesIncludes rotors, calipers, caliper brackets, brake pads, rotor spacers, and hardware.
Rotor Material TypeCast Iron
Front Rotor IncludedNo
Rear Rotor IncludedYes
Front Caliper IncludedNo
Rear Caliper IncludedYes
Front Spindles IncludedNo
Master Cylinder IncludedNo
Brake Booster IncludedNo