Great idea, especially for us non-"motorheads". I believe even I would recognize a missing bolt. I think I'll try to get under mine this weekend and have a look-see. Plus if one is missing, I'm good with duct tape, actually I've become a fan of Gorilla Tape. I always thought the little clunk I hear was one of the marbles rolling around in my head, but who knows it may be a loose or missing tranny mount bolt.