<strong>Yahoo Message Number: 79068</strong>OK long story short. I had a tire go flat today on the Interstate. I figured something was wrong and pulled off at the next exit. Found a Speedco. (Those guys get an AAA from us). <br/>Anyway the problem was a valve stem failure. They installed Flow Thru Valve stems on all my tires. Never seen em before. Have I been missing something? And what's...