Our most affordable emergency brake kit, Calipers accept either GM or Lokar type E-brake cables and are tapped to accept common 7/16"-20 banjo fittings, Big 11.75" diameter, 0.81" thick rotors will provide plenty of stopping power, Steel caliper bracket welds to the axle tube so it will fit virtually any application, Hats are drilled for 5 on 4 1/2", 5 on 4 3/4" and 5 on 5" bolt patterns
Speedway Rear Disc Brake Kit with Emergency Brake, 3 Inch Backspace
Sku # 91031933
Mfr. Part # 91031933
Details
Replace those old drum brakes with modern rear disc brakes. This affordable rear disc brake kit conversion gives you an emergency brake just like your family car has. The steel caliper bracket welds to your 3" axle tube, so it will fit virtually any application. The calipers accept either GM or Lokar type E-brake cables and are tapped to accept the common 7/16"- 20 banjo fittings. The 11-3/4" x .81" vented iron rotors will give you plenty of stopping power.
Steel rotor hat fits 5 on 4-1/2", 5 on 4-3/4", and 5 on 5" bolt patterns and has a 3" backspace.
NSRA Approved
Specs
Notes
Includes rotors, rotor hats, caliper brackets, calipers, pads, and hardware.
Rotor Diameter
11.75 Inch
Parking Brake Provision
Yes
Rotor Hat Bolt Pattern
8 x 7.00"
Rotor Material Type
Cast Iron
Front Caliper Included
No
Rear Caliper Included
Yes
Front Spindles Included
No
Master Cylinder Included
No
Brake Booster Included
No
Bolt Pattern
5x4.5 | 5x4.75 | 5x5
Reviews
Definitely a great deal!
Rated
by 48 Chrysler Windsor Hot Rod on April 03, 2026
Summary: Installed on a Ford rear axle in my 48 Chrysler Windsor.
Yes, I recommend this product.
Yes
Rated
by Chevy64! on April 01, 2026
Summary: Good every thing fit
Yes, I recommend this product.
Yes I would buy this again!!
Rated
by Ace on October 08, 2025
Summary: Hello my name is rob,the disc brake package is easy to install,however, one must be very careful to have the weld on mounting plate on in the exact position prior to welding it on, this is the most critical feature!!
Prduct is great Quality but didn't fit my vehicle
Rated
by ford man on November 16, 2024
Summary: I ordered both front and rear disc brake kits for my 1952 F-1 pickup the front kit would fit, but the rear kit did not have a large enough bolt circle to fit my axles. I kept the master cylinder and power brake unit and sent the rest of the order back. I decided to stay with drum brakes. The tech dept. tried to find parts that would work but none were available for rear disc brakes with a 5 1/2 bolt pattern.
Yes, I recommend this product.
well built unit
Rated
by jacl on July 05, 2024
Summary: putting disc brakes rear of my truck
Yes, I recommend this product.
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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 74 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.
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