The guide bolts in the caliper require a 7mm allen wrench. I used an allen socket with a ratchet for more torque. It would probably be pretty hard with an allen wrench. I would not try to heat the guide bolts because they are inside the rubber bushings. The spring clip will need to be removed, not necessarily to take the guide bolts out but to take the caliper off of the bracket. You can just pry the clip off with a screw driver.
kremithefrog: I beleive you are refuring to the bolts that hold the caliper bracket to the knuckle. Those are 15mm bolts.
- Chris
