I just found this site because of a problem with our dryer. Everything seems to be OK except there is a constant squealing from behind the drum when it's running. I have gotten to the motor and can spin it OK, but when the drum turns it sounds like metal on metal and in addition some small object is floating around. It sounds like a coin bouncing IN the drum but there are none to be found inside.
I'm a fair "shadetree mechanic" but dryers are new to me and I don't want to take apart something I can't put back together.