It's been a while since I've been on here, but I have an air bag story. Had them on a 1992 F-350 dually for several years and more than one change of tires. Well, had new tires put on one time and a couple of days later one of the air bags started leaking,really bad! No big deal...replaced it. About 10 miles down the road the new one was leaking....turned out the inside rim (it was on the front to begin with) was a little wider than the other 5. That made the tire rub against the airbag. Put it on the outside, no more problems. So, watch the width of your rims! It was obvious once I knew the problem.
Jim