My Cuda had the prop valve and seperate metering valve as shown in beepbeep's pic. A few years ago I did a complete brake job and couldn't get the front calipers to release. The metering valve was clogged. I was able to bleed the front brakes but the calipers would not release. I tried to clean it out by soaking in pb blaster for a few days but still couldn't free it up. I ended up bypassing it and have no problems with braking front or rear for over 2 years now.