I have noticed the rear of my truck has been vibrating lately so I got under it just now, I thought it was the diff . Nope, not the diff. Apparently when I got 5 new tires they didn't secure my spare. They just left the bolt in the wheel. This is why I hate taking my truck to shops and prefer doing the work myself

I'm lucky I didn't lose the spare or the bolt. Especially because Ive been doing stuff like this: