Brake Proportioning Valve for adjusting brake bias
This product fits
- Direct bolt-in fitment on 1979-93 Mustang
- Fitment for other Mustang years requires adapter fittings or cutting and flaring of the rear brake hard line.
- Allows adjusting the hydraulic pressure to the rear brakes.
- Adjusting the rear line pressure alters the force applied by the rear brakes.
- Allows more precisely balancing the proportion of rear brake, relative to the front brakes.
- Extremely helpful when swapping brakes from one model/year to another.
- Designed and manufactured by Wilwood.
- Direct fit for inverted flare brake lines with 3/8-24 tube nuts
- Direct fit in rear brake line of 1979-93 Mustang: No adapters needed
- Adjust pressure by rotating the knob.
- Provides very fine adjustment increments.
Installing an adjustable proportioning valve requires removing or disabling
the stock brake proportioning valve. There are two ways to do so:
- Remove the stock valve with MM's Brake Proportioning Valve Eliminator Kit (MMBAK-6)
- Disable the stock valve by removing the internals and replacing the stock valve's plug with the MM-2450-A solid plug.
- Wilwood states this valve is intended for off-highway application only.
- Brake fluid will be required when bleeding the brakes after installation.
- An adjustable valve means that you must adjust your Mustang's brake bias after installation. Do so at low speeds in a safe area.