3B - Thank you for the comments. All the trucks I have worked on are just as you describe. I am only repeating what the catalogs say about there being two rear hoses, and am probably showing my concern about mixing newer and older technology. I have noticed that the Stovebolt forum is focused on older trucks, while forums dealing with 1960's trucks are mostly about pickups and lighter trucks. My medium duty truck is a 66 model that was built in 65, and it seems to include some of both years in the engine and drive train, which are very solidly built, while having a new style cab and related wiring that seems to be less well put together and less available. For example, it has the old style tandem brake/clutch master cylinder (showing that older ideas are not always the best) and newer style heater, wiper, and light controls and electrical components - all of which seem to be hard to find parts for. Such are the challenges of keeping older trucks running. But it should work just fine on the ranch if I can ever get finished with what needs fixing.
