John Deere 760A Scraper Good solid machine Does have an engine issue, possibly a spun bearing. Does crank and run, after running and it warms up, it does get tight and blows white smoke. Power shift transmission Early 70's model Has 531 John Deere engine Good rubber all around and hold air. Back rear tires have a leak, probably is the O-Rings. Machine does have a Red dot AC. Unknown condition. S/N- 003605T