OEM-Style Function: Period-correct disc/drum proportioning valve delivers proper brake timing with a factory-style appearance, Integrated Warning Switch: Includes brake light warning switch for added safety and original-style functionality, Precision Brass Body: Machined brass construction provides consistent performance and long-term reliability, Ford Application Fit: Designed for 1965–73 Ford Mustang and early Ford disc/drum brake conversions, Port Configuration: Features 3/8"-24 and 7/16"-24 I.F. female inlet and outlet ports for straightforward installation
Speedway 1960-70 Ford Style Proportioning Valve for Disc Drum Brakes Speedway Motors
Speedway 1960-70 Ford Style Proportioning Valve for Disc Drum Brakes
Sku # 91664076
Mfr. Part # 91664076
Condition
New
Brand
Speedway Motors
Sold
Each
Details

Period correct disc/ drum valve with brake light warning switch. OEM look but not old and rusty like the one your trying to replace! Gives you the disc/drum timing you need and with the OEM look.

New (not rebuilt) 1960-70s Ford Proportioning Valve.

  • 1965-73 Ford Mustang OEM-Style Disc/Drum Proportioning Valve
  • Ford disc brake prop valve Fits early 70's but used to convert 60's drum cars to disc brakes.
  • 3/8"-24 & 7/16"-24 I.F. Female Inlets
  • 3/8"-24 & 7/16"-24 I.F. Female Outlets

 

Specs
Brake System Type
Disc/Drum
Proportioning Valve Type
Fixed
Proportioning Valve Location
Left Mount
Port Quantity
3-Port
Inlet Fitting
3/8"-24 & 7/16"-24 I.F. Female
Outlet Fitting
3/8"-24 & 7/16"-24 I.F. Female
Material Type
Brass
Finish
Natural
Color
Natural
Overall Length
4.25"
Overall Width
0.75"
Overall Height
3"
Overall Thickness
0.75"
MFG. Part #
91664076
Sold in Quantity
Each
Reviews

Proportion valve was part of a dual reservoir master

Rated
Product Rating
by Rick on September 03, 2025

Summary: The valve came with an extra port that needed to be capped. Why not put the cap in place and make sure it is sealed. It depends on a copper washer to seal piece provided . The washer too thin and not crushable enough to fill the imperfections on the valve. Other wise it seems to perform as expected with disc front and drum rear.

Yes, I recommend this product.

69

Rated
Product Rating
by Ford on November 03, 2023

Summary: Installed on a 69 mustang with disc conversion

Yes, I recommend this product.

Great product!

Rated
Product Rating
by Rattle can DAN on September 15, 2023

Summary: Fit like factory no regrets

Yes, I recommend this product.

Great product

Rated
Product Rating
by robbi on November 18, 2020

Summary: Exactly what I needed

Fast accurate servixe

Rated
Product Rating
by Will on October 14, 2020

Summary: I needed a Ford style distribution block and Speedway had one in stock at a reasonable price.

Yes, I recommend this product.

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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.