OK I'm not sure how many of us have had issues with valve stems on your trucks but it seems like I get stuck with ones that want to fall apart. Twice on my truck and also on my boat trailer they have left me with flat tires. the metal stem separates from the rubber that mounts it to the rim. I have replace them all already but one went bad again. I was told that the traditional all rubber ones wount hold the higher pressures we run in our trucks, is that the truth or just bs.