Thats a common problem with the 1-18 motor pulleys, Tim. When I was working for Brightwood Appliance, I must have changed hundreds of those.......but of course back then they were still an available part. Philco Blades of Water washers used a similar design. Ive changed them to a standard pulley without the internal rubber mounting with no bad results. Lets face it, the 1-18's are never going to be a quiet machine........ Try a local hardware store OR a Farm & Dairy supply place. They usually have a host of pulleys available for sale.........