As you can see in the pics I had to replace the piece that sits on the floor, the chains had worn through it almost the full length. Because it had wore thru the channel no longer supported the diamond tread piece and it had flattened. Used that cross peen hammer in the pic and put it in the crease and struck it with another 3 lber. Took about 10 minutes to put the creases back where they were supposed to be angle wise. Also made an adapter out of a bolt to grease some of the bearings, they had an internal groove to allow it to be greased from inside.