During my Sunday afternoon stroll through a local junkyard I located a '78 chevy crewcab dually. The emblem on the rear cab post stating 3+3 as well as Camper Special 10,000 GVW. Anybody have an idea of the type rear axle this might be. I would assume it is heavy duty and geared low, the spring pack was huge to say the least. It would be an easy steal right now for less than $200. Any Ideas?