The Brake Proportioning Valve on your vehicle controls the amount of rear brake applied when you put your foot on the brake pedal. Generally, the higher you lift your vehicle, the less brake is applied.The system itself is great and ensures that if your vehicle is loaded for towing and the back is lower, the more rear brake is applied. To retain the standard brake bias on a lifted vehicle, Roadsafe have a simple bracket extension to reposition the Brake Proportioning Valve.
