Fits 1949-53 Ford / 1952-53 Mercury Applications, This kit is designed to work with your stock wheels (15\" and larger), Features 11\" cast iron rotors, loaded metric calipers, slide bolts, brake hoses, crush washers, dust caps, and all seals, bearings, & hardware, This kit is an aftermarket solution. It is not intended to be a direct installation or OEM replacement, Comes with detailed instructions to provide a painless installation 11 Inch Disc Brake Conversion Kit, 49-53 Ford, 52-53 Mercury Cars Sku # 91032003 Mfr. Part # 91032003 Condition New Brand Speedway Motors Sold Kit Details
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Learn how to properly Bed-In your brake pads by reading our tech article. Bedding-In Brake Pad Procedure
Specs Sold in Quantity Kit MFG. Part # 91032003 Position Front Wheel Bolt Pattern (in.) 5x4.5 in. Wheel Bolt Pattern (mm) 5x114.3 mm Rotor Diameter 11 Inch Rotor Type Vented Caliper Pistons One Caliper Finish Natural Parking Brake Provision No Minimum Recommended Wheel Diameter 15 Inch Rotor Shape Round Hardware Included Yes Rotor Style Plain Face Spindle Type Ford Bore Size 2.38" Rotor Drum I.D. 6.25" Rotor Thickness 0.88" Rotor I.D. 2.61" Stud Diameter 0.5" Stud Length 1.29" Thread Pitch 1/2"-20 Rotor Finish Natural Rotor Material Type Cast Iron Front Rotor Included Yes Front Rotor Diameter 11 Inch Front Caliper Included Yes Rear Caliper Included No Front Spindles Included No Master Cylinder Included No Brake Booster Included No Brake Hose Material Rubber Brake Hoses Included Yes Ford Bearing End Style Not Applicable Rear Rotor Included No Bolt Pattern 5 on 4.5" Color Natural Front Caliper Finish Natural Front Caliper Piston Quantity 1 Bolt Hole Pattern 5x4-1/2 Reviews Great swap kit, everything you need. Rated by Mike on August 15, 2026
Summary: Easy install, perfect fit for the 51 Ford Custom
Yes, I recommend this product.
Kit fit great but had to source different dust caps Rated by Little Pete on May 29, 2026
Summary: Dust caps wouldn't clear spindle so I had to source others. The tech line didn't help resolve my issue or offer a replacement cap.Everything else fit perfect!
Yes, I recommend this product.
Kit fit great but there is room for improvement Rated by Karen #1 on May 18, 2026
Summary: Everything in the kit fit great except the dust caps, they were about 1/4" too shallow to install on the rotor/spindles. You will also need to grind down or replace the factory drum brake bearing retaining washer to fit inside the dust cap, it is about 1/4" too large to use, they could have included the proper washer with the kit. When I called the tech line to get help, the fella that answered the call said that I needed to grid down the spindle to make the cap fit or custom make a cap to fit their rotor! I never would have expected that answer from a Speedway tech about their product! There would have been no threads left past the nut if I were to grind the spindle down! They didn't even offer to send me a different style cap to help resolve the issue. The kit should have come with the appropriate dust cap to begin with! I ended up having to go to 3 different auto parts stores to find a cap that would clear the spindles. Napa came in for the win and had a cap that fit the disc brake swap perfectly! They cost me additional $15.
Yes, I recommend this product.
Great product Rated by Junkyard dog on February 10, 2026
Summary: Worked perfect easy to install!!!
Yes, I recommend this product.
Yes the brake kit was easy and affordable. Rated by Steve on May 14, 2025
Summary: The kit was designed very well. It went on easy. The only thing I had trouble with was trying to find the large wheel nut washer. The original one was too large and I didn't want to cut it down.
Yes, I recommend this product.
Related Items / Suggested Parts Mityvac MV8020 Vacuum Brake Bleeding Kit Longacre® 52-45202 Brake Fluid Bleed Bottle w/ Magnet, Wrench CPP 4953WBK-S 1949-53 Ford Car Front Disc Brake Kit Tech Support We\'re here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through Messaging and a knowledgeable Speedway Motors team member will be happy to help. 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.
