So found I was missing my lower drivers side mount bolt. The car hadn't sounded right and I just happened to catch the caliper swinging back into position after I parked it tonight.
Called around to a bunch of auto stores and found no one carries these suckers. One had suggested to find a new bolt from a hardware store. So I'm trying to track down the right bolt size without removing the other one as I still need to the car to go get the part. (really need to get a second vehicle one of these days.)
Found this on yahoo answers: 14mm x 2 thread, 41mm long
But I would appreciate a second opinion from a more reliable source.