My auction buddy stop to see what was for sale this week. He called and said there was a big White Stihl in a box, in parts. I had to work so I couldn't' go by and look. He said where the clutch and chain should be was a pully and belt. The auction is over so moot point. Do you think this was a concrete saw? He said there was no chain or bar any where near it. Did Stihl ever make a belt drive reduction system like the old Homelites?