check your drum bearing for wear, do this by putting your hand into drum and pushing up at the 12 o clock position any up/down movement bearing are SHOT
another check is with the power out, is better if drive belt is removed open the door spin the drum around by hand drum should not groan or rubble (with the belt off this rules out motor bearing rumbling noise )
if you now move the belt clear of both of the motor pulleys drop the top back on lose, select a spin cycle run it a couple of minutes and listen to the sound the motor is making. you should now know which part is failing
wirecutterman
May 2010