I have confirmed that I need a 38 tooth belt for my 153W101. I have looked for a while and I can find no source for a 38 tooth neoprene belt. They seem to be as scarce as hens teeth! If anyone might know of a source please let me know. I also have a wheel foot on it and was considering trying to go back to the walking foot system (only needs a few parts since it has been before) but I have been told the wheel foot is very good for knife sheaves and small holsters. I also may to find a parts machine to change the sprockets for the 224195 belt. If I live long enough, I will get this machine running!!!!!