I have a 1997 Honda Civic HX, with approximately 98,000 miles on it. Lately I've heard a screeching/grinding sound coming from my right rear brake area. I have already jacked the car up and checked to see if it might have been a bearing, but it seems to be the two sides of the drum are rubbing against each other. What could be causing that, because I only hear that sound from time to time and it's after I come to a complete stop; and the sound is louder after the car has been running on the highway for a while.
So, what could it be?