So I pulled apart the rebuilt motor that came in a mustang I bought. The thing as never turned, but I wanted to double check to make sure everything was done right(actually I probably pulled it just cause I wanted to know what cam it had ) . I pulled it and don't really have any idea what this stupid thing is. The only numbers I can find are "211187" stamped on the rear of the cam and there are some numbers cast into the shaft that I tried to take pics of. Anybody have any ideas?