Hey thanks for replying smallengineguy. I took out the spockets and chain and couldn't find any chips or breaks. I don't think its from them, but then I'm not really one of that much sled knowledge. Anyways, if its the chain/sprockets it could be off the chain. The chain was loose (when i was grass dragging in my yard) and was skipping teeth on the sprocket so there is a good chance that it is pieces of the chain or sprocket, but like i said i couldn't find anything. I was leaning towards a bearing...i suppose its teardown time once again.