Related Photo Galleries
Metering ValvePresent in the front disc portion of a disc/drum set-up, the metering valve allows the slower reacting rear drums to contribute to the overall braking performance. Actually, it slightly retards the application of the front discs, which in turn, allows the rear drums to catch up. Without a metering valve, your car would nose dive when the brakes were applied, and therefore, you'd see excessive front pad wear. Not good.