NoVees
I have a GMC Truck Maintenance Manual (~370 pages) covering models 100-400 from 1947-1954. It is a reprint. I bought it on ebay. Search "1947 GMC" and you will find it priced arount 24.99. Or you can call Faxon Auto Literature at 1 800 458-2734. They are one of the sellers on ebay.
I also found an amazing amount of information in a reprint of the owners manual, that I bought at Bow Tie Bits, a old chevy truck shop in Wichita, KS.
