When I first apply the brake in the morning I can hear a thunk, and then that happens no more but I think I can hear the brakes rattling over bumps when I have my windows down. It happens on the right side, and that is where the thunk comes from when I apply the brakes first thing in the morning as well. Has this happened to anyone and is there a way to fix it. I don't know much about tinkering with brakes, and I'm not sure if it's the discs in the front or the drum in the rear. 2009 Taco, thanks all.