I checked mine but it was painted over. Only the Model and Serial Number is "stamped" in the metal. Mine is really a 1947.1 with the 3DP-J stamped into the metal.

There is a picture on Chevs of the Forties Web Catalog and it saya 4600 lbs.

http://www.chevsofthe40s.com/browse.lasso?&search=data%20plate&dept=truck&skip=1


1946 Chevy Half Ton
('56 235, '86 T5, '79 Camaro Z28 rear end, working on the '85 Jaguar XJ6 IFS)
1976 Margay Panther X, MC91B