Originally Posted by
Flexray
The center of the wheel is one piece that is welded to the barrel of the wheel, there is no welds on the front part of the wheel.
My vote is something got caught in between the brake caliper and wheel, and cut the wheel apart. When Chevy/GMC trucks went from rear drum brakes to disk brakes, rocks would get caught in between the caliper and wheel and slowly cut the barrel of the rim until it blows apart. I have seen brake pad shims slip out and cut brake rotors off of the hub.
You don't see that every day.