I'm hoping someone can help me with this. I put new Firestone's on the week before the Hamb drags last year. I drove it to work that whole week, then right after pulling into the Mokan drive my drivers tire went flat, maybe 200 miles on it. When I pulled the tire off the wheel I didn't find anything in the tire but there was a hole in the tube. I put a new tube in and it's been fine since then.Maybe I should mention that I'm running 40 wheels and that prior to buying these tires and wheels I haven't really had any experience with tubes in automobile tires. My last tires were bias ply but tubeless. That brings me to this years Hamb drags. No problem at all till we were driving home Saturday evening on 96 about half way between Carthage and I-44 my drivers rear tire went flat. I put on my spare and go on home. When I pulled the tire yesterday I found a small hole in the tube but nothing in the tire. I should mention also that I drive this car all the time when the weather's decent. The whole point of this long winded thread is to ask what's caused this flat when there's nothing in the tire. Is it caused by friction between the tire and tube? If so I've probably got other's ready to give me problems. Maybe there's something else I should be doing when I mount the tire? This is not intended as anything against the Firestone's, I love these tires. I know lots of people are running these without these problems. I would like to know how to not have flats though. I had this car 9 1/2 years before I got these tires and never had a flat. Any help or advise would be greatly appreciated. Sorry about being so long winded. I want to add that I checked my tires prior to heading out and they were all good,32 to 35 pounds.