MOAB Prop Valve, Bracket & Lines - Left Drop for Wilwood Master SKU: 3069

MOAB Proportioning Valve with Bracket & Lines

Left side drop for Wilwood Tandem Master Cylinder

Designed specifically for 1966–77 Ford Broncos equipped with hydroboost power brake systems and a Wilwood tandem master cylinder, this MOAB Left Drop Proportioning Valve Kit is the perfect solution for clean, functional brake plumbing. With a left-side drop configuration, this setup is optimized for hydroboost conversions and provides proper brake bias, helping you achieve confident, controlled braking both on and off the trail. This kit includes the proportioning valve, mounting bracket, and pre-bent hard lines—everything you need for a straightforward install.

This kit is not compatible with manual brake setups. If you're running vacuum power brakes, you’ll want the right-drop version designed specifically for that setup.

• Fits 1966–77 Ford Bronco with hydroboost power brakes – Specifically engineered for use with Wilwood tandem master cylinders.

• Left-drop configuration – Routes lines cleanly from the master cylinder in hydroboost applications.

• Includes bracket and pre-bent lines – Ready-to-install solution with all necessary components.

• Not for manual brake systems – Designed exclusively for hydroboost setups.

When running hydroboost on your Bronco with a Wilwood tandem master cylinder, this left-drop MOAB valve kit gives you clean plumbing and solid braking control.