Premium cast iron vented rotor design reduces brake fade and extends service life, These 11-1/4" rotors feature dual wheel bolt patterns to fit 5 on 4-1/2" and 5 on 4-3/4" axles, These are compatible with axle flange diameters of 6-1/4" or smaller, Center hole size is 2.80" ID to fit Currie and other aftermarket axles, 2.30" backspace works well with several bolt on rear brake brackets
Replacement 11-1/4 Inch Rear Brake Rotor for Currie Axles Speedway Motors
Replacement 11-1/4 Inch Rear Brake Rotor for Currie Axles
Sku # 91631039
Mfr. Part # 91631039
Condition
New
Brand
Speedway Motors
Sold
Each
Details
Info

These 11-1/4" one-piece, vented iron disc brake rotors are for rear disc brake applications with Currie axles. Features dual bolt patterns for 5 x 4.5" (Ford/Mopar) and 5 x 4.75" (Chevy/GM) wheels, and a 2.80" register to fit Currie and other aftermarket axles without modifications.

  • Center Hole: 2.80"
  • Backspace: 2.30"
  • Maximum Axle Flange Diameter: 6-1/4"
  • Thickness: 1"
  • Thickness @ Center of Rotor: 0.236"
Installation Tips

Installation note:

The inside diameter of this rotor will accept an axle flange that has a diameter of 6-1/4" or smaller. If your axle flange exceeds 6-1/4" in diameter, you will need machine your axle flange to decrease your axle flange diameter to fit this rotor as necessary.

When utilizing an aftermarket axle with disc brake conversion kits, it may be necessary to reduce the diameter of the axle flange to a diameter necessary to adequately fit inside the required Clearance I.D. that the brake hat/brake rotor will require. (see above diagram for illustration)

This rotor has been designed for use with aftermarket axles such as Currie that have a 2.795" pilot. If you are using stock axles, or your axles have a pilot that is smaller than 2.795", we offer Part # with a 2.790" Center Hole Diameter that is better suited to these applications.

Specs
Sold in Quantity
Each
Rotor Diameter
11.25 Inch
Bolt Pattern
Dual: 5 on 4.5" | 4.75"
Rotor Shape
Round
Rotor Style
Plain Face
Rotor Finish
Natural
Inside Diameter
2.80
Rotor Thickness
1
Position
Rear
Rotor Type
Vented
Rotor Material Type
Cast Iron
Backspace
2.3
Flange Diameter
6.25
MFG. Part #
91631039
Notes
Thickness at Center of Rotor: 0.236"
Tech Support
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.