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Deluxe Disc Brake Kit, 1955-1964 Chevy Full-size Car, Stock Spindle
Deluxe Disc Brake Kit, 1955-1964 Chevy Full-size Car, Stock Spindle

Deluxe Disc Brake Kit, 1955-1964 Chevy Full-size Car, Stock Spindle

Front Position, 5 on 4.75" Bolt Pattern, 11 Inch Rotor Diameter, Vented Rotor Type, Natural

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Deluxe Disc Brake Kit, 1955-1964 Chevy Full-size Car, Stock Spindle
Deluxe Disc Brake Kit, 1955-1964 Chevy Full-size Car, Stock Spindle
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Part # 91031911
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Bolt Pattern:
5 on 4.75"
Rotor Diameter:
11 Inch
Rotor Type:
Caliper Pistons:
Caliper Finish:
MFG. Part #:
Rotor Thickness:
Rotor Shape:
Stud Diameter:
Stud Length:
Track Width Increase:
Hardware Included:
Sold in Quantity:


These kits allow you to mount front disc brakes on your 1955-1964 Chevy full-size car (Bel-Air, Biscayne, Impala, 150 Series, 210 Series). Front disc brakes provide a significant improvement in braking performance versus the drum brakes your old Chevy came with. This disc brake kit works with stock, drum brake spindles only - it does not work with 2" drop spindles. Kit will work with 14" wheels intended for disc brake applications, as well as most 15" (or larger) wheels.

Rotors are 11" diameter with 5 on 4-3/4" bolt pattern and calipers have 7/16"-20 inlets. This kit will increase track width 7/8" per side or 1-3/4" total when installed. 

  • 11" Rotors
  • 5 on 4-3/4" - bolt pattern
  • Metric calipers
  • Calipers mount behind axle (rearward)
  • Will work with 14" & larger wheels intended for use with disc brakes
  • Bearings, pads, brackets included
  • Seals and hoses
  • Hardware included
  • Increases trac-width 7/8" per side
  • For '55-'64 Chevy fullsize cars.¬†

910-31911 Instructions (PDF)



  1. This kit will not work with the original '55-'64 Chevy 4-wheel drum brake master cylinder. It does not have the capacity to supply the proper amount of pressure for front disc brakes. For best results, we recommend using master cylinder booster kit 910-31974 with this front disc brake conversion.
  2. Front drum-to-disc brake conversions also require a proportioning valve to be installed in the rear brake line circuit. The proportioning valve modulates pressure to the rear brakes which is necessary to prevent the rear brakes from locking up in an emergency stop situatiuon. Recommended master cylinder booster kit 910-31974 also incudes an adjustable proportioning valve to allow for a proper installation of front disc brakes.


For '55-'64 Chevy fullsize cars. Will work with 14" and larger wheels intended for use with disc brakes. Will not fit 2" drop spindles. Kit does add 1-3/4" total track width (7/8" per side). Includes rotors, calipers, caliper brackets, bearings, seals, brake pads, brake hoses, and hardware.
Some parts are not legal for use in California or other states with similar laws/regulations

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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.
  • Basic Disc Brake Kit, 1955-64 Chevy Fullsize Car, Stock Spindle
    Qty x 1
  • 1969-1972 GM Midsize 11 Inch Brake Rotor, 5 on 4 3/4 Inch
    Qty x 2
  • IMCA Approved 1978-88 GM Metric LH Brake Caliper, 7/16-20 Inlet
    Qty x 1
  • IMCA Approved 1978-88 GM Metric RH Brake Caliper, 7/16-20 Inlet
    Qty x 1
  • Cone-Outer Whl Bearing
    Qty x 2
  • Inner Wheel Bearing Cone
    Qty x 2
  • Replacement Axle/Hub Grease Bearing Seal, 1.87 x 2.40 x .27 Inch
    Qty x 2
  • Speedway Soft Street Brake Pads, GM Metric 1978-UP
    Qty x 1
  • Spindle Nut Kit for Speedway 49-54 Chevy and 1953-82 GM Spindles
    Qty x 1
  • Front Disc Brake Hardware Kit
    Qty x 1

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