Product Summary

64-66 Ford Mustang, Disc/Drum Brake System Type

  • Will fit '64-'66 Mustangs
  • 7" brake booster diameter
  • 1" bore master cylinder with reservoir included
  • All necessary hardware included in the kit
  • Kit fits automatic transmission applications
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Key Specs

MFG. Part #91664047
BrandSpeedway Motors
Brake System TypeDisc/Drum
Brake Booster Diameter7 Inch
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Need To Know

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Speedway Motors 91664047 Details

This is one of our best selling power brake units for your early Mustang. Want to add power brakes but fear it will hit the shock towers? Not this unit! Sure to slip right in and clear under the hood and get the stopping power you deserve. Retain the OEM look and add power brakes to your Mustang today!

1964-1966 Ford Mustang Booster Conversion Kit (Disc/ Drum)

Conversion Kit Includes

  • 7 " Single Black Mustang Booster w/ Firewall Plate
  • 1" Bore Master Cylinder
  • 2227161 Casting Number with Teardrop" Markings
  • 1/2-20" & 3/8-24" Ports on left Side only
  • Bottom Mount Universal Disc Drum Proportioning Valve Kit
  • Includes Pre-bent Lines to Master Cylinder
  • Built in Residual Valve for Rear Brakes
  • Zinc Bottom Mount Bracket
  • Mounting Hardware

Application

This kit fits automatic transmission applications, if you are looking for a manual application kit consider: 916-64046

Charts

Speedway Motors 91664047 Specifications

KEY SPECS
MFG. Part #91664047
BrandSpeedway Motors
Brake System TypeDisc/Drum
Brake Booster Diameter7 Inch
GENERAL
Brake Booster TypeVacuum Diaphragm Single
Outlet CountTandem
Master Cylinder Port Sizes3/8"-24 & 1/2"-20 IFF
Reservoir IncludedYes
Sold in QuantityKit

Ratings & Reviews

4

1 Review

4

1 reviews

5

0

4

1

3

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2

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1

0

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I would buy combo again. Took some time to add new lines.

4.0

a year ago

Buster

Somonauk,Illinois

Verified

Unit worked as should but had to get adapter for booster rod to fit to brake pedal. Tony took care of me on that. Was supposed to send master pin but didnt so I made the one that came work. It took some time to make lines for adapting to new pp valve. Fits nice on fire wall with room by shock tower.

Would Recommend

Showing 1 of 1 reviews

Questions & Answers

3 Questions • 3 Answers

Will this work on a 65 Mustang, drum brakes, automatic transmission. If not, what will.

by Randy

• 7 years ago

1 answer

Will these works on a Mustang 1966 V8 Manual Transmission with 4 wheel disc conversion? the included proportioning valve is disc/disc?

by Red Beard

• 8 years ago

1 answer

Concerning Part # 91664047 1. Is power brake peddle required? 2. Does the rubber boot around the pin in front of the brake booster need to be removed?

by Alvin

• 8 years ago

1 answer

3 of 3 questions shown

Fitment

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