Product Summary

Front Position, 11.75 Inch Rotor Diameter, Natural

  • Upgrade the braking performance on your 1948-1956 Ford Half Ton with this Deluxe Disc Brake Kit featuring a 5 x 5-1/2 Inch wheel bolt pattern and 1/2"-20 studs
  • Big 11-3/4" vented rotors dissipate heat and generate more torque on the wheel to equal better stopping performance
  • Standard GM midsize calipers for easy serviceability offer a 2.81" piston, providing more clamping force and larger brake pads to prevent brake fade
  • Simple bolt on upgrade using your stock spindles with instructions provided
  • Rubber brake lines

Comes as a Kit

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Key Specs

MFG. Part #91031964
PositionFront
Wheel Bolt Pattern (in.)5x5.5 in.
Wheel Bolt Pattern (mm)5x135 mm
Rotor Diameter11.75 Inch
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Need To Know

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Speedway Motors 91031964 Details

These kits allow you to put disc brakes on your 1948-56 Ford 1/2 ton pick-ups. No spindle modifications are required.

Kit Includes:

  • Vented cast iron rotors
  • GM single piston calipers (7/16"-20 inlets)
  • Brake pads
  • Caliper slide bolts
  • Rubber brake lines
  • Steel caliper brackets
  • Hardware
  • New bearing and seal adapters
  • Seals
  • Inner bearing cones
  • Outer bearing cones
  • Spacers
  • Dust caps

Charts

Speedway Motors 91031964 Specifications

KEY SPECS
MFG. Part #91031964
BrandSpeedway Motors
PositionFront
Wheel Bolt Pattern (in.)5x5.5 in.
Wheel Bolt Pattern (mm)5x135 mm
Rotor Diameter11.75 Inch
Rotor TypeVented
Caliper PistonsOne
Caliper FinishNatural
Parking Brake ProvisionNo
Minimum Recommended Wheel Diameter15 Inch
Rotor ShapeRound
Hardware IncludedYes
Rotor StylePlain Face
Front Rotor IncludedYes
Front Rotor Diameter11.75 Inch
Front Caliper IncludedYes
Rear Caliper IncludedNo
Front Spindles IncludedNo
Master Cylinder IncludedNo
Brake Booster IncludedNo
Brake Hoses IncludedYes
Rear Rotor IncludedNo
Bolt Pattern5 on 5.5"
FinishNatural
ColorNatural
Front Caliper FinishNatural
Front Caliper Piston Quantity1
GENERAL
Sold in QuantityKit
NotesIncludes rotors, bearings and seals, calipers, pads, brake hoses, brake tabs, and caliper brackets.
Rotor Thickness1.2"
Stud Diameter0.5"
Stud Length1.05"
Thread Pitch1/2"-20
Centerline of Holes7"
Rotor Material TypeCast Iron

Ratings & Reviews

4.7

84 Reviews

Overall Assessment

Overall, customers appear to be satisfied with the product's quality, practicality, and features. They find the product to be a good fit, easy to install, and of solid quality. A few customers experienced minor challenges during installation due to bearing adapter size, but most noted that issues were resolved with minor effort. Some suggested clearer instructions could enhance user experience. Compared to competitors, customers deemed this product as a high-value purchase, demonstrating high recommendation rates and willingness to repurchase. Some improvements to the product could be made, but overall, it is viewed as a superior product in its category.

4.7

84 reviews

5

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Most Liked Positive Review

4.0

Complete kit but......

This kit is very complete and the parts well made with the exception of the bearing adapters, The outside diameter of my adapters had to be sanded down with emery cloth to allow the inner bearings to slide on and off easily. I assembled one without checking this and the bearing became seized on the adapter. I tried to pull the bearing off with a puller and ruined the bearing. I called customer service and they replaced the parts quickly. Speedway's people were professional and knowledgeable.

Most Liked Negative Review

3.0

Nice Kit! Not a bolt on kit, requires work on adapter

The bearing adapter is 0.008" oversize, so inboard bearing with not slide on. Cannot heat or press fit bearing on spindle, due to seal application and future disassembly. Shame on me, I chose to ignore previous reviews concerning this problem. I spent 3 hours and $3 worth of emery cloth to reduce smaller OD of adapter.

Filter by Ratings

Worked great

5.0

3 months ago

Sam

Ohio

Verified

Used on 1056 f100

Would Recommend

This was a nicely engineered kit.

1.0

3 months ago

Mike

Niagara Falls, Canada

Verified

All of the parts were well thought out and fit perfectly. The instructions were easy to follow and everything seems to be just as expected. Not on the road yet but getting closer and these disc brakes will make a huge difference.

Would Recommend

best product for the price!

5.0

a year ago

Sloth

Dahlonega, GA

Verified

installation is smooth, instructions are clear, parts are quality! My order was missing a few bolts and after a quick call to speedway the project was back underway! now that it's done the fruck stops straight and has more stopping power! 10/10 recommend this upgrade even if you stay with manual brakes.

Would Recommend

Would definitely buy again

5.0

a year ago

J

Wyandotte, MI

Verified

Easy install, look great and function even better. Couldn't be happier.

Would Recommend

yes

5.0

a year ago

Captain

Midland, Texas

Verified

Have not installed as of this point but the shop that does this kind work highly recommend this product to me

Would Recommend

I would by this product again

5.0

a year ago

Mud

Arcola Missouri

Verified

The product is for a 1952 ford f1

Would Recommend

Disc brakes for 55 f100

5.0

a year ago

Tom

Harmony Pa

Verified

Seemed to be working well. Almost dine

Would Recommend

Awesome product

5.0

a year ago

Cowboy

Pisgah AL

Verified

High quality product would buy again and recommend to anyone wanting a upgrade... Awesome kit

Would Recommend

Installed on a 49 Ford F1 three years ago

5.0

a year ago

Mitch

San Juan Capistrano, CA

Verified

This kit is excellent. I installed it on my truck following the directions provided and it went together easily and works amazingly well. I heated the provided bearing races in cast iron pans in the oven at 400 degrees for 30 minutes to make sure they were fully heated. They slipped right on and contracted tight in just a few seconds. I did not have to modify the grease fitting positions and I retained the original master cylinder. It is so nice to brake smoothly and not have the truck pull to a side if I have to brake hard.

Would Recommend

I would buy again

5.0

a year ago

Jimmy

Valdosta Ga

Verified

Was fairly easy to install but comes with no installation instructions

Would Recommend

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Showing 10 of 84 reviews

Questions & Answers

43 Questions18 Answers

I have a 55 f-100. Do you know if this kit will work with Vintiques series 14 wheel, 5x 5/5-1/2"?

by J.L.

2 years ago

1 answer

We have this same kit on our 48 F1. I am looking for the wear components to replace the disc's pads and flex hoses. Is it possible to purchase these items separately or would it be cheaper to buy another kit? Thanks

by Marshall

2 years ago

1 answer

On original wheels 16 "?

by Sebastián

7 years ago

1 answer

Will this kit work with the stock master cylinder on a 1950 f1 ford ?

by TED

7 years ago

1 answer

what brake fluid is recommended with this system having drums on rear?

by Craig

7 years ago

1 answer

I got a '49 F3/M68. Will this still fit my hubs?

by Steve

8 years ago

3 answers

Will this disc brake kit work with 35 ford spoke wheels? Right now the drum is too big for the wheels to fit but it looks like the hub sticks out further than the caliper just not sure if it stick out enough to fit... I would need the mounting face of the hub to be approximately 1.5" out past the brake caliper.

by Jaren

8 years ago

1 answer

I have a 1951 Ford F1, will I be able to use this with the stock spindles from the '51? Also, do you sell a rear disc brake conversion for my 1951 Ford F1?

by Gordon

8 years ago

4 answers

craykenneth69@yahoo.com,, I'm running 16" steel wheels, 5 on 5-1/2. Tube type wheels. Will I have clearance issues with this kit. This issues for a 1950 F1 front end.

by Kenneth

8 years ago

4 answers

on my 48 f1 do i have to replace the master cylinder?

by London

8 years ago

1 answer

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