I have a fairly new 20 hp Craftsman I bought last Fall that had a locked up end(bent rod), I bought a used 18 hp engine to put on it. I have a guy who will swap it over for 60 bucks but I want to attempt it myself. It looks fairly straight forward and it seems like only a few bolt hold it to the frame and I would have to remove the drive pulley. The only thing is my starter doesnt mount the same so I would have to find a work around for that