[freebeard]

Did split-window busses ever come with sliding doors? Yes, starting in 1964, although some were made in late '63. You could also get sliding doors on both sides. All models (except pickups) were available this way. The door hardware is different than on later busses, although early '68 models had the same hardware.

http://http://www.vintagebus.com/busfaq.html#16