A Wilwood brake kit and hardware set displayed on a clean white background, including a black brake caliper, a silver brake rotor, mounting hardware, washers, and a packaged brake booster.
Close-up of a polished metallic mechanical component with a square flange, four bolt holes, and an embossed 'FFG' logo, shown against a white background with part of a dark metal assembly in the foreground.
An automotive power steering pump assembly with a black cast metal body, silver metal mounting bracket and cylinder, green threaded fittings, and a clear fluid reservoir with a green cap, isolated on a white background.
A black and silver metal automotive component with green plastic connectors, shown on a plain white background.
A metal mechanical hardware component featuring a threaded rod with a spherical eye bolt, a hexagonal spacer, and a silver bracket with pre-drilled screw holes, shown against a solid white background.
A black metal brake master cylinder with a mounting bolt, shown on a plain white background. The brand name 'Willwood' is embossed on the side.

1973-1979 Ford Hydroboost Kit

$2,000.00

Hydroboost brake kit for 1973–79 Ford F100 trucks. Replaces the weak vacuum booster with hydraulic assist for trucks that tow, wheel and perform. Raw or black Cerakote finish.

• Hydraulic brake boost sourced from the power steering pump — no vacuum dependency

• Firm, consistent pedal feel under towing, off-road, and performance load conditions

• Significant upgrade over weak factory vacuum booster systems• Black Cerakote option for corrosion resistance and a clean, finished underhood appearance

• Purpose-built fitment for 1973–1979 Ford Trucks — not an adapted universal kit

Install Level: Advanced

Requires custom brake lines.

SKU: FFG-F7379-HBK-R

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WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead. Learn more.
1973-1979 Ford Hydroboost Kit
From $2,000.00

Finish the Build Right

Parts our crew pairs with this kit so your swap goes together right the first time.

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Overview
Specifications
Tech Resources
Compatibility

If you've pushed a '73-79 F100 hard - towing a trailer, navigating off-road terrain, or just driving it the way a truck deserves to be driven - you already know the factory brake system wasn't built for that kind of work. The stock vacuum booster does the minimum. This Hydroboost Kit does the job right.

Fat Fender Garage engineered this hydroboost conversion specifically for the 1973-1979 Ford F100, replacing the factory vacuum brake booster with a hydraulic system powered by your power steering pump. The result is stronger, more consistent brake pedal feel - the kind of stopping power that matches what this generation of truck is capable of when it's built properly.

Built for 4x4, Towing, and Performance

Vacuum-based brake boosters depend on engine vacuum to function - and that's a limitation. Under heavy load, high RPM, or modified engine setups, vacuum levels drop and pedal feel suffers. Hydroboost eliminates that dependency entirely. Your power steering pump generates the hydraulic pressure that powers the brake booster, delivering firm, reliable pedal response whether you're hauling a load down the highway or working a trail.

This kit is engineered for F100 builders who demand more from their truck — not just in how it looks, but in how it performs and how safely it stops.

Two Finish Options. One Standard of Quality.

The FFG Hydroboost Kit is available in two finishes to match your build:

  • Raw - Clean, uncoated steel ready for your shop's finishing touch.
  • Black Cerakote - A durable, heat-resistant ceramic coating that looks sharp and holds up hard.

Both options are identical in fitment, contents, and installation. The finish is the only difference - choose what fits your build.

Fitment

Designed and engineered exclusively for the 1973-1979 Ford. This kit requires a functioning power steering system - the hydroboost unit draws its operating pressure from the power steering pump. Confirm your truck is equipped with power steering before ordering.

Professional Installation Recommended

Hydroboost conversions involve your brake and power steering systems - two of the most critical systems on your truck. We recommend professional installation and proper system bleeding after install. Questions during the build? Our team is here. We're builders too, and we'll help you get it right.

The Brake Upgrade You Have Always Needed

The '73–79 F100 is a truck worth building right. If you're putting the time, money, and care into making it perform - the brakes need to match. The Fat Fender Garage Hydroboost Kit gives you the stopping power, pedal confidence, and engineering quality that this truck deserves.

Stop harder. Build smarter. Drive with confidence.

Fat Fender Garage part number FFG-F7379-HBK-R (Raw); FFG-F7379-HBK-BK.CK (Black Cerakote)
Application: 1973–1979 Ford F100
Type: hydroboost conversion - replaces the factory vacuum brake booster
Boost source: power steering pump hydraulic pressure
Finish options: Raw (uncoated steel); Black Cerakote
Finish is the only difference between options
Requires: functioning power steering system
Custom brake lines required
Install level: Advanced; professional installation recommended
Installation manual published

Installation Guide

Step-by-step instructions for this kit.

🔧 View Install Guide

Questions? Talk to the FFG Team

For fitment questions or build-specific guidance, the FFG team has you covered.

Email: info@fatfender.com

Call: (480) 621-6072

The FFG Hydroboost Kit is designed for the 1973–1979 Ford F-100 and integrates with your existing power steering pump to deliver consistent hydraulic brake boost. This system is particularly well-suited for trucks running 4x4 drivetrains, tow setups, or performance engines where vacuum-driven brake assist is unreliable or insufficient.A properly functioning power steering system is required for this kit to operate.

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Brakes > Power Brakes > Hydroboost Kits 1973–1979 Ford F100 with power steering Hydroboost conversion replacing the factory vacuum booster; hydraulic boost from the power steering pump; requires functioning power steering and custom brake lines; raw or black Cerakote finish; advanced install Upgrading brake feel on a 1973–1979 F100 that tows 4x4 and off-road builds Performance or modified engines that make low vacuum Replacing a tired factory vacuum booster 1973-1979 Ford F100 hydroboost kit 73-79 F100 hydroboost conversion dentside hydroboost hydraulic brake booster conversion vacuum booster replacement power steering brake booster Ford truck brake upgrade 4x4 brake upgrade towing brake upgrade Fat Fender Garage FFG Fits 1973–1979 Ford F100. Requires a functioning power steering system and custom brake lines. Raw or black Cerakote; fitment and contents are identical. Install level: Advanced. Professional installation recommended. Vehicle: 1973–1979 Ford F100 with a functioning power steering system. Required: custom brake lines. Systems affected: brakes and power steering. Bleed the system properly after install. Installation manual published for this kit. Hydroboost brake booster conversion kit; raw uncoated steel or black Cerakote finish Problem: The factory vacuum brake booster on a 1973–1979 Ford F100 depends on engine vacuum. Under towing, off-road use, high rpm or a modified engine, vacuum drops and pedal feel suffers. Solution: The FFG Hydroboost Kit replaces the vacuum booster with a hydraulic booster powered by the power steering pump, giving stronger, more consistent pedal feel whatever the engine is doing.