Disc brake stopping power for your Ford 9 inch or 8 inch rearend at nearly the same cost as rebuilding/replacing drum brakes, Kits includes two bolt-on caliper brackets, two 11-1/4" vented rotors, two GM metric style calipers (non-emergency brake), brake pads and hardware for increased stopping power, Fits over an axle with maximum flange diameter of 6-1/4" O.D., Rotors have a 2.80" center hole which fit Currie axles with both 5 on 4-1/2" and 5 on 4-3/4" bolt circles, Fits "old" and "new" style big bearing (3.150" bearing O.D.) Ford housings and with axle offsets of a minimum 2-3/8" to 2-1/2"
Speedway Ford 9 Inch Bolt-On Disc Brake Kit, Fits Currie Axles Speedway Motors
Speedway Ford 9 Inch Bolt-On Disc Brake Kit, Fits Currie Axles
Sku # 91032007
Mfr. Part # 91032007
Condition
New
Brand
Speedway Motors
Sold
Kit
Details
Info

Disc Brake Stopping Power at a Great Value

This economical disc brake kit for Ford 9 inch and 8 Inch axles is simple to install and provides big stopping power, at a price nearly the same as replacing original drum brakes. That Ford rear end handles the power to make it go, but these binders clamp down when you say whoa! Today’s average family sedan can stop from 60 MPH in 120 feet, at nearly 1G of deceleration. You need the same stopping power. Your passengers, you and your car deserve the confidence of disc brakes and our kit delivers that confidence with exceptional value.

Superior to Drum Brakes

Aftermarket disc brakes are superior to original drums in many ways: more braking force, less brake fade, and easier service. Stopping power starts with our newly manufactured GM Metric D154 style single piston calipers, commonly found on 1978-88 GM G-Body and A-Body cars. Large 11-1/4” diameter, 1” thick vented rotors provide more stopping leverage than common 9” or 10” drum brakes. Brake pads are easier to change than drum shoes, and our brake kit includes a street-friendly organic compound for long rotor/pad life. Replacement pads are common sized, available from your local auto parts store. Looking for more aggressive stopping power? We carry race-grade D154 disc brake pads that drop in just as easily.

Fits Ford 9 Inch and 8 Inch Housings

This disc brake kit fits Ford 8 inch axles, as well as passenger car Ford 9 inch axle housings with “big bearing” ends (3.150” O.D. bearing, found on passenger cars from 1974-79). Included bracketry will adapt this kit to both “new style” and “old style” Ford 9 inch housing flanges with the 3/8” bearing retainer bolt holes. Bracket spacers are also included, allowing this kit to work with axle flange offsets of 2-3/8” or 2-1/2” common on Ford 9 inch passenger car rear ends. Axle flange offset is measured from the axle housing flange face (with bearing retainer removed) to the axle shaft flange face (side where the brake rotor/drum rides, including the thickness of the axle flange).

Hardware and Instructions Included

Kit includes a detailed, step-by-step instruction sheet with images. The floating calipers include new Grade 5 slider bolts, with all remaining hardware of Grade 8 quality. Cast iron rotors feature a dual bolt pattern in 5x4.5” (Ford/Mopar/AMC) or 5x4.75” (Chevy/GM) to match your desired wheel hub pattern. Plus, this assembly will clear most 15” diameter wheels designed with disc brakes in mind. Note that there are no provisions for a parking brake, making this the perfect disc brake conversion kit for the budget-focused builder who prefers a basic upgrade kit.

  • Disc brake stopping power at nearly the same cost as rebuilding/replacing drum brakes
  • 11-1/4” diameter, 1” thick vented cast iron rotors dissipate heat faster than drum brakes
  • Serviceable design ensures good drivability and piece-of-mind when on the road
  • Street-friendly GM D154 style pads, replacements available nearly everywhere
  • GM “Metric” style single piston calipers with 7/16”-20 banjo-style inlets
  • Fits Ford “big bearing” 9 inch housings from passenger cars and 8 inch rear ends
  • Use with Ford 9 inch rear ends with 2-3/8” or 2-1/2” axle flange-to-housing offsets
  • Dual wheel bolt patterns covering all GM/Ford/Mopar (5x4.5” for 1/2” studs, 5x4.75” for 7/16” studs)
  • Use with 15” or larger disc brake-style wheels
  • Easy bolt-on installation w/ included instruction sheet
  • Includes heavy steel mounting brackets, Grade 8 hardware and nylock nuts (everything you need)
  • Rotor register/center hole is 2.80" to fit Currie axles
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 disc brake kit Part # or replacement rotor Part # with a 2.790" Center Hole Diameter that is better suited to these applications.

Specs
Sold in Quantity
Kit
Rotor Diameter
11.25 Inch
Minimum Recommended Wheel Diameter
15 Inch
Caliper Finish
Natural
Rotor Shape
Round
Rotor Style
Plain Face
Rotor Finish
Natural
Color
Natural
Hardware Included
Yes
Parking Brake Provision
No
Bracket Included
Yes
Stud Diameter
0.50
Bore Size
2.38
Rotor Thickness
1
Position
Rear
Brake Lines Included
No
Rear Rotor Included
Yes
Front Spindles Included
No
Master Cylinder Included
No
Brake Booster Included
No
Front Caliper Included
No
Front Rotor Included
No
Rear Caliper Included
Yes
Rotor Type
Vented
Rotor Material Type
Cast Iron
Brake Hoses Included
No
Mount Type
Bolt-On
Bolt Pattern
5 on 4.5" | 4.75"
Caliper Pistons
One
Brake Pad Compound
D154
Parking Brake Cables Included
No
MFG. Part #
91032007
Rotor I.D.
2.80
Rotor Backspace
2.3
Stud Diameter 2
0.4375
Axle Flange Offset
2.36" - 2.50"
Ford Bearing End Style
Big Ford (Old/New)
Related Items / Suggested Parts
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.