Since 1952
America's Oldest Speed Shop ®
Speedway Motors Bill Smith

Basic Disc Brake Kit, 1969-77 GM Caliper to Ford Spindle, 5 on 4-3/4


Centerline of Holes:
Material Type:
Sold in Quantity:
Hardware Included:
Material Thickness:
Garage Sale:
Includes brackets, hardware, seals, inner bearing cups and cones, and spacers.

Share by Email


Click image to enlarge


Please NOTE the following about this product:

  • This item is sold as a kit.



Q & A

What's in the Box

This basic front disc brake conversion kit allows you to mount 1969-72 GM mid-size rotors (5 on 4-3/4" wheel bolt pattern) and 1969-77 GM mid-size calipers on your 1937-48 Ford passenger car style spindles. No machine work needed. Bracket is zinc plated.  

Kit Includes:

  • 1969-1972 GM to Ford brake brackets
  • Hardware
  • Bearing and seal adapters
  • Seals
  • Inner bearing cups
  • Inner bearing cones
  • Spacers
  • Instructions
  • Does not include dust caps, washers or spindle nuts

916-31903 Instructions (PDF)

Item Details

'69-'72 GM rotor/caliper to early Ford spindles

You may also be interested in:

Disc Brake Kit, 1969-77 GM Caliper to Early Ford Spindle, 5 on 4-3/4 Inch

Easily installs 11" rotors and the 1969-77 GM midsize calipers to your 1937-48 Ford passenger car spindles. No machine work needed. This kit works well with bolt-on steering arms. The 11" rotor brake kits are great for street rods based on 1932-48 Fords. Uses Chevy bolt pattern 5 on 4-3/4".

910-31942 Instructions (PDF)

Speedway 1928-1948 Ford Forged Spindles Only

These Speedway spindles are a one piece, drop forged design constructed of high strength 4140 steel, which makes them superior to original components. These spindles are modeled after the '37-'41 round-back design and use '37-'41 Ford kingpins. They  fit Ford axles from '28-'48 and can be used with period correct drum brakes or modern Speedway Motors disc brakes, but will not work with hubs from '28-'36.

  • Uses 1937-1941 kingpin kit
  • For Ford axles 1928-1948
  • Will not work with 1928-1936 Hubs

Be sure to include our kingpin kit (91032121) with these spindles.

Spindles also available in kit form with Standard or Deluxe kingpins.

Spindle Identification Guide (GIF)

910-32121 Instructions (PDF)

910-32122 Instructions (PDF)

1969-1972 GM Midsize 11 Inch Brake Rotor, 5 on 4 3/4 Inch

We stock those hard-to-find replacement brake rotors for your 1969-1972 GM midsize car. These rotors are specifically designed for the rigors of dirt track racing.  Drilled with a 5-on-4.75" bolt circle. Includes 7/16" fine quick-start wheel studs (installed).

  • 1969-1972 GM Midsize
  • 11 Inch Brake Rotor
  • 5 on 4-3/4 Inch
  • 7/16" fine studs installed
  • 11" diameter x 1"
  • IMCA Approved

This rotor is designed for dirt track applications and should NOT be used for asphalt racing.



Speedway 1969-77 GM Midsize Caliper
                        Rebuilt 1969-77 mid and full size caliper. 7/16"-20 inlet so you can use the readily available brake hoses and hardware from Pre-1978 GM midsize cars. IMCA approved. 

No core charge required. Fits 1" thick rotor. 2.8" diameter pistons installed. It has 7-1/16" center to center mounting holes. The width between mounting tabs is 2-3/4".