This built in check valve located in the front will help tell the difference between the two most common proportioning valves. This one is for drum brakes in the rear. 4.

Proportioning valves come in all shapes and sizes and vary considerably depending on the car you are working on in a brake disc conversion, and we have expert tips to help you decide. - Super ...

India Business News: The proportioning valve is the part of brake system which adjusts brake distribution pressure to the wheels.

What is a PCV Valve? Save money on your next oil change by checking your air filter and PCV valve yourself and save unnecessary replacements.