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Complete Disc Brake Kit 1937-48 Ford, 5 on 5-1/2 BC
Complete Disc Brake Kit 1937-48 Ford, 5 on 5-1/2 BC

Complete Disc Brake Kit 1937-48 Ford, 5 on 5-1/2 BC

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Complete Disc Brake Kit 1937-48 Ford, 5 on 5-1/2 BC
Complete Disc Brake Kit 1937-48 Ford, 5 on 5-1/2 BC
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Part # 91031909
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Bolt Pattern:
5 on 5.5"
Rotor Diameter:
11.75 Inch
Rotor Type:
Caliper Pistons:
Caliper Finish:
Rotor Shape:
Hardware Included:
Sold in Quantity:
Includes rotors, bearings and seals, calipers, pads, brake hoses, brake tabs, and caliper brackets.


This complete disc brake kit easily installs big 11-3/4" rotors on your 1937-1948 Ford car or 1937-1947 Ford 1/2 ton pickup spindles while retaining the original 5 on 5-1/2" bolt circle.

This kit will work with spindles having either original steering arms or with flat steel steering arms. It will NOT work with forged aftermarket steering arms. Wheels must have 3-7/16" center hole and have been designed for disc brake applications. Will NOT work with early Ford factory wire or steel drum brake wheels. You will need to use a later disc brake steel wheel or aftermarket wheel.

910-31909 Instructions (PDF)

Item Details

'Ford 11-3/4" rotors to ''37-''47 Ford 1/2 ton pickup & ''37-''48 Ford car spindles'


  1. This kit is NOT compatible with early style 5 x 5-1/2" drum brake wheels. Wheels being used must be disc brake compatible.
  2. Kit does not include washers or spindle nuts.
Some parts are not legal for use in California or other states with similar laws/regulations

Related Products

What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • Ford F-150 11.75 Inch Brake Rotor
    Qty x 2
  • 1971-76 Chevy Impala Left Brake Caliper
    Qty x 1
  • 1971-76 Chevy Impala Right Brake Caliper
    Qty x 1
  • Seal 1.875x2.625 Inch
    Qty x 2
  • Basic Disc Brake Kit, 1937-48 Ford Spindle to F-150 Rotors, 5 on 5-1/2
    Qty x 1
  • Brake Kit Hardware
    Qty x 1

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