Heavy snow here, truck has no problems getting out, but then I start driving and it's shaking really bad. I get out, and the rear end looks like this: It looks like the entire wheel came off. The tire is still intact perfectly to the rim (which is good). Can I just jack the truck up and "push" it on again? How the hell did this happen? The snow? It may have happened when I got out of my parking space (which covered my truck pretty well).