Looked online for parts and drawings to see how it went together and found appliance parts pro. They had the most complete set of parts in stock of several places I checked. The drawings were great so I could see how it came apart. Went out to the garage with it and took it apart. Checked the drawings and watched the video (video was an older mixer but close enough.) Found a worn worm gear and the mating gear with several missing teeth. Ordered parts with 2 day shipping. Cleaned all the old grease and metal shavings out (that was the most time consuming part of the project), regressed it and put it back together. Really appreciated the drawings because I forgot which end a set of ball bearings went on and the it was easy to tell from the drawings. Back to making bread again.