Those 2 carrier bolts are done up to about 90 lb ft, so they won't move in a hurry.
Also on some cars i have worked on, the carrier bolts are slighty too long, so the ends poke through the hub, the problem with this is the ends accumulate lots of rust, so making the bolts extremely hard to remove, especially if they haven't been removed for a few years. So be warned! its not always an easy job.