It could be a bearing issue typically bearings will make a screech or squeel most the time when the plastic is worn and is metal to metal but it could be your plastic piece worn strange, also could be a bearing screw or 2 that came out and it's spinning on 1 screw rather then 3 or more..............Could be a glide worn on the front plastic pieces.........could be a bent drum.....could be a felt issue.....could just be misaligned off the front panel.....these are things you'll have to figure out yourself when breaking it down and dismantling it........check out sears parts website for schematics on your machine and breakdown procedure.......good luck