Caravan L4-156 2.6L VIN G 2-bbl (1985)
The proportioning valve section operates by transmitting full input pressure to the rear brakes up to a certain point, called the split point, and
beyond that point it reduces the amount of pressure increase to the rear brakes according to a certain ratio.
Thus, on light pedal applications, approximately equal brake pressure will be transmitted to the front and rear brakes, while at higher pressures, the
pressure transmitted to the rear brakes will be lower than to the front brakes to prevent premature rear wheel lock-up and skid.
