Hi there,
Thanks for the info, I don't think there's a plate there, I don't think there's even wood there

But wouldn't it be weird to have your serial # put there by the firm that builds the cab? This is without a doubt a Brantford cab, or do you mean under the wooden floor? I'll have a look soon and report back here. Thanks
I found the serial#( T 37358941, you're right 41chevy, with a T) on the engine, I tried to look for more but that thing is to heavy to handle on your own, I just popped my back, so those numbers will have to wait till I can get there with the tractor.
You guys are pretty good, GMC Canada says “no idea”, GMC US,” that's old, and we know nothing about it”. Thanks so far, I'll report new things here or on the website.
I like Archaeology on old vehicles and you have been/are a great help
Thanks
Richard