An article I helped contribute to, but did not write the majority of... about the manuals and sales literature available for the '47-'55 style trucks :
Chevy Truck Manuals : 1947-1955 1st Series The Advance-Design TrucksI think it will come in handy to a lot of folks.
If you see some new people with those trucks wandering around, please point 'em that way.
Enjoy, add any feedback you may have,
thanks,
-W