Something I stumbled on...
http://www.explorerforum.com/forums/index.php?threads/tighten-your-caliper-bracket-bolts.192818/
Glad you were successful and thanks for the link. Anti-seize has it uses but brake components is not one of them. I spent too many years working on race cars and we always used lock tight on caliber mounting bolts. Probably over kill because we went over the car every week, especially brake and steering components. That said, I do use brake grease on the pins (bolts on GM), not on threads, and on the calipers where the pads slide.
Honestly, Free Republic is not where I would go to for expert advice on automotive repairs, just sayin’.
The real point should be... torque the bolts to spec. And spec is much higher than what one might be able to “feel”. Tightened mine as best could with a hand torque, then took it to a friend with an air torque wrench to finish it. It is a problem if they loosen, needless to say. Thanks.