I was traveling to Disney World 2 weeks ago and made it to Jacksonville form Columbia SC, I was refueling and happened to look down at my rear wheel. Well there was a 6" crack from one of the spoke to the valve stem. I immediatly took it to the closest Ford dealership and they said it should be ok to drive on to Disney. I got my sharpie out and marked the both ends of the crack. After arriving at Disney I saw that the crack had spread about 1/8" longer on both ends. I ended up having to replace the wheel. This just emphasizes the importance of inspecting these vehicles, I'm a jet mechanic in the Air Force and my wife has accused me more than once of being too particular to the details, I just tell her the is no such thing as being too safe. I watched this weekend as several of my neighbors packed up and left, I only know of one person that checked their tire pressures, and that was me. That is the simple stuff, if their not checking that just think what else they might not check....just my 2 cents