Long story short...2017 Ram 2500 CC with 5500 miles, no towing yet...replaced stock Firestones with Michelins at 600 miles. Last night when in bed I hear what sounded like sprinklers running on the lawn until I realize I don't have sprinklers. Jumped out of bed and ran outside afraid some buttcheek was puncturing my tires. I find the front right tire with three small sidewall cracks and air leaking like crazy. Then, like popping the top off a bottle of beer, I hear the left rear start leaking and also find a couple small sidewall cracks. Finally, the other rear tire does the same thing and I now have a truck in the driveway with three flat tires. I'll call Discount Tire as soon as they open but it's been a long night as I can't imagine how I'm going to get these three tires replaced...I don't think they have a mobile tire service. Anyway, I won't be purchasing another set of these unless Michelin steps up but am concerned this is a problem I've read about and may happen again - at 65 mph on the way to work!! I've been running Michelins since 1976 but am starting to reconsider what I'll do based upon how Discount Tire handles the situation.