What brake booster does the Ford Ranchero use?

The chart lists the Ranchero (with LTD II and Cougar) under the Vacuum – 11½" Diameter Single Diaphragm booster, noted as 'Standard on Sedans.'

Which Ford models used Hydro Boost as standard equipment?

Hydro Boost is listed as standard on the Lincoln Continental, Continental Mark V, and Versailles.

What proportioning valve is used on the LTD II, Thunderbird and Cougar?

A 3-Way control valve assembly with both pressure differential and metering functions, with a proportioning split/slope of 400/.43 and port sizes of 1/2 primary in, 3/8 primary out, 3/8 secondary in, and 9/16 secondary out.

What booster is standard on the Mustang/Capri?

The Vacuum – 220mm Diameter Single Diaphragm booster is standard on all 5.0L (302 CID) and 2.8L engines, and R.P.O. on 2.3L and 2.3L turbo engines.

What brake control valve does the Versailles use?

A 2 Way Brass valve with pressure differential function, proportioning split/slope of 300/.43, and all four fluid port dimensions of 3/8.

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Ford Brake Booster Applications & Control Valve Usage Chart - Ranchero, LTD II

Ford brake booster applications and control valve usage chart with valve fluid dimensions

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Ford brake booster application table (vacuum/Hydro-Boost types and sizes by car line) plus a brake control valve usage chart with proportioning split/slope and port dimensions.

AI caption March 2012 · Photo 62 of 363

This is a page (12-01-33) from a Ford factory shop manual section titled 'General Hydraulic Brake Service.' It contains two reference tables. The first, 'Brake Booster Applications,' lists brake booster types and sizes (7.5" tandem diaphragm vacuum, 220mm single diaphragm vacuum, 9.0" and 11½" diameter vacuum boosters, Hydro Boost, and a 22mm single diaphragm unit) matched to Ford/Lincoln/Mercury car lines including Pinto/Bobcat, Mustang/Capri, Granada/Monarch, LTD II, Cougar, Thunderbird, Ranchero, Lincoln Continental, Continental Mark V, Versailles, and Fairmont/Zephyr, with comments on which engines (5.0L/302 CID, 2.8L, 2.3L, 4.1L/250 CID) receive each booster as standard or R.P.O. equipment. The second table, a 'Brake Control Valve Usage Chart,' details front/rear brake system configurations (disc/drum or disc/disc) by car line, control valve assembly type and housing (2-way brass, 2-way cast iron, 3-way, 2-way aluminum), pressure differential and metering functions, proportioning split/slope values (300/.28 through 500/.58), and valve fluid port dimensions (primary and secondary in/out, from 3/8" to 5/8"). Reference codes CL2086-1H and CH2307-2G appear on the illustrations. Useful for identifying correct boosters and proportioning valves for late-1970s Ford products including the Ranchero.

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Frequently asked questions

What brake booster does the Ford Ranchero use?: The chart lists the Ranchero (with LTD II and Cougar) under the Vacuum – 11½" Diameter Single Diaphragm booster, noted as 'Standard on Sedans.'
Which Ford models used Hydro Boost as standard equipment?: Hydro Boost is listed as standard on the Lincoln Continental, Continental Mark V, and Versailles.
What proportioning valve is used on the LTD II, Thunderbird and Cougar?: A 3-Way control valve assembly with both pressure differential and metering functions, with a proportioning split/slope of 400/.43 and port sizes of 1/2 primary in, 3/8 primary out, 3/8 secondary in, and 9/16 secondary out.
What booster is standard on the Mustang/Capri?: The Vacuum – 220mm Diameter Single Diaphragm booster is standard on all 5.0L (302 CID) and 2.8L engines, and R.P.O. on 2.3L and 2.3L turbo engines.
What brake control valve does the Versailles use?: A 2 Way Brass valve with pressure differential function, proportioning split/slope of 300/.43, and all four fluid port dimensions of 3/8.