Last Friday I had to travel about 100 miles from home for work. I drove my '41 Plymouth wagon. The car ran great. On the way home that evening I had driven about 50 miles (including about a 20 mile stretch on the interstate at 65-70 mph) when I heard a strange noise coming from the rear and then the car started to handle funny. I figured I had a flat tire and as soon as I could find a side street I pulled off the road. Just as I stopped the rear corner of the car collapsed. When I got out I found the rear wheel lying on the road. I have the AAJ rear disc brake set-up with studs rather than wheel bolts. It looks like two of the studs backed off, loosening the wheel and then the other three studs sheared off. I called AAA (it is good we have the Plus membership) and the roll-back got me home.
Other than the sheared off studs and a damaged wheel, the only other damage is the bottom of the rear fender that got curled up when the rear corner hit the ground. Nothing that can't be fixed or replaced.
I just am very lucky that it did not happen on the interstate. It has also taught me not to assume anything and checking my wheel nuts and studs will be a regular maintenance item.
Jim Yergin