Here's a picture of the hitch on my 48 2 ton, that will have a flat bed.
http://rides.webshots.com/photo/2429400960080251109gnNExE
Nothing fancy at all, it's not supposed to be.

Flat bed trucks didn't really have bumpers, so just having the hitch is fine with me. It's a factory made one for something newer that has the same frame width, I just drilled the 6 holes in the frame to bolt it on.
With a ball in place it'll be a step of sorts, or you could make a special step to slide in in place of a ball mount if you wanted to.

Grigg



•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-