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Speedway Tri-Five Front & Rear Disc Brake Conv., D/S Rotors, Red
Speedway Tri-Five Front & Rear Disc Brake Conv., D/S Rotors, Red

Speedway Tri-Five Front & Rear Disc Brake Conv., D/S Rotors, Red

Front and Rear Position, 5 on 4.75" Bolt Pattern, 11 Inch Rotor Diameter, Powder Coated

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Speedway Tri-Five Front & Rear Disc Brake Conv., D/S Rotors, Red
Speedway Tri-Five Front & Rear Disc Brake Conv., D/S Rotors, Red
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We estimate this item will ship on or before December 14th.
Part # 91664007
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 2 business days for Speedway Motors to ship this item.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.

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Front and Rear
Bolt Pattern:
5 on 4.75"
Rotor Diameter:
11 Inch
Caliper Pistons:
Caliper Finish:
Powder Coated
MFG. Part #:


Our all inclusive disc brake conversion kit makes it easy for the budget minded hot rod enthusiast to convert their drum brakes to disc brakes. The GM full size kits won't require you to swap out spindles, saving you time and money. Want power brakes? Add a power brake conversion and have full braking power. Booster conversion kits come in many finishes and sizes and can be configured to any kit.

Full Size Chevy 1955-1958 Complete Stock Height Front & Rear Disc Brake Kit Includes

  • 11" Drilled & Slotted Rotors
  • Large Single Bore GM Powder Coated Black Calipers w/ Pads
  • Caliper Brackets
  • Hoses with Banjo Bolts
  • Bearings
  • Seals
  • Dust Caps
  • Spindle Nuts
  • Spindle Washers
  • All Hardware

1955-1958 GM Full Size 8" Dual Zinc Booster Conversion Kit (Impala, Bel Air, Biscayne)


  • 1" Bore Dual Bail Cast Iron Master Cylinder
  • Brass Proportioning Valve Kit for Left Mount
  • 8" Dual Zinc Booster w/ Firewall Brackets
  • Pedal Extension & Clevis

Installation Instructions (PDF)

General Booster Instructions (PDF)

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.
  • 91664007 BOX 1
    Qty x 1
  • 91664007 BOX 2
    Qty x 1
  • 91664007 BOX 3
    Qty x 1
  • 91664007 BOX 4
    Qty x 1

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