Hi Everybody, My name is Bill Halsey and I live in Davisburg, Michigan. That's about half way between Pontiac and Flint. I just got my first big truck. It's a 1968 R600ST Dump truck. It came with a 20,000lb GVW triple axle trailer built in 1969. I am restoring both to haul around my 1969 Case Construction King back-hoe, which is also a restoration project. After reading a lot of the posts here, I guess I may be a little different than most, because I plan on having all this equipment be "working" restorations. I have several projects lined up where I will be excavating and hauling material. The Mack has a 5X3 Triplex transmission, and airbrakes. I am trying to get more info on the engine, and will be contacting the museum shortly. The data plate on the Driver's door isn't much help. All it has is make, model, and serial number. No rpm ratings, no weight ratings, nothing else. So if anyone can tell me how to determine what engine and gears it has, I would greatly appreciate it. And knowing how to determine the GVW would help as well. From reading the posts, you all seem like really nice people and dedicated enthusiasts, so I'm sure we will be chatting a lot. Bill.