I was looking at some trucks at auction (GSA auctions). I saw several Dodge trucks listed as 5/4 ton 4x4 ( I take it 5/4 ton means 1 and 1/4 Ton military rating), they are mid seventies models. However, none of them had any sort of hub sticking through the front wheels. They did have 8 lug wheels, but they appeared to have completely flat hubs, like a non floating rear axle. Are these Dana 60 4x4 frontends? Do they have disc brakes? Can they be converted to work in my 70 K-20 with a reasonable amount of effort? With lockout hubs?