I have a brake rattle on my 2002 2500HD 4x4. Is this a common thing or is GM supposed to be using anti-rattle clips on the calipers. I bought the truck used so I don't know if it has always done this. It only seems to rattle when I go over sharp bumbs or on a bumby dirt road. I am taking the truck in to see what the dealer will do about CSK and I will talk to them about the rattle. I just wanted to find out before I went to the dealer whether it was me or there is somethng wrong.