HefDog,
Go to the GM Heritage web site. You can find a lot of information there about your vehicle. I too have a 1946 Suburban that was missing the VIN plate. I called these folks up and asked some questions about locations. They did tell me that some frames did come from the factory with numbers stamped on them, but not all of them. He also told me that there was not a particular location. It depended on the worker that day. The center told me to look on the driver side of the frame near the first cross member. I didn't find a number, but I did find letters. I called the center back and asked about the letters and they told me that they referred to the factory where the frame was made. "SL" is what I found which I was told that this meant the frame was made in St. Louis. I thought that was pretty cool just to find that out. The numbers on the engine are the same way. Some states used those as number as VINs, but not all states did. Some didn't even use numbers at all. Crazy huh! Well good luck. I ended up getting a new VIN tag and title through the State of Ohio. Sad part is, now the Suburban is considered a 2011 self assembled vehicle and not a 1946. Well, at least I will be able to drive it.
Russ Sweet
