Me and my wife are in our beater 73 Super (not the good 73 that isn't completed yet) just got on the highway after filling up the tank. Not even a half mile up the road the steering fall starts to shake, then got worse quickly. Instinct says let off on the gas and pull over. Right then the drivers side front drops six inches to the ground and our tire passes us. No problem with control, I steered off the highway into the shoulder. I probably scraped 100 feet. The tire kept going about another 1000 feet across the highway and rested in the left shoulder.
So I get out and see, yup, no wheel. How the hell did that happen? Over the road I did find the four lug nuts. Lower control arm and the bottom of the spindle are worn flat. Repairable..
My wife was freaked out and I was just laughing at the whole thing.
I was the last to take the wheel off when I was working on the front brakes, but I know I torqued the lugs down... I don't know why this happened.