Replacing the gasket and shaft kit was easy. Cleaning all the old grease was the most time consuming part. I used Super Lube Multi-Purpose Synthetic Grease w/Syncolon - High Temperature, Water & Corrosion Resistant Grease - Workshop & Industrial Use - Food Grade - Translucent White - Canister - 14.1 oz (41160). Re-assembled mixer. Have used used several times with no issues.