This may be a Kenmore thread but I have a ‘63 Whirlpool Imperial Mark XII that’s all original with the exception of the belt and pump and hose that goes from the pump to the lint filter and it appears to works just fine and doesn’t make any strange sounds at all. Could be because it only has 42 years of actual use on it since it was in service from 1963 to 2005 and the elderly lady who owned my ‘63 Whirlpool Imperial Mark XII set probably didn’t use it much at all before the house it was in ended up being sealed up until last year sometime