As others have already told you, it's pretty simple, and the only potential snag is stripping the bolt. On top of some of the suggestions made, I have one myself. Take a punch, and whack the bolt nice and hard a couple times to help break it free. Another recommendation is, don't use those L shaped torx drivers, use a torx bit on a ratchet or on a screwdriver, so that you can lessen the chance of stripping the head.