All the 1.5 ton Open Express trucks from 1932 to 1940 used the same p/n 460081 tailgate. I can send you some pictures of the end gate if you can email me your postal address and pay for the postage. The Chevrolet box sides are the same for 1939 and 1940 p/n 471715 left hand and p/n 471716 right hand. believe the tops of the box sides were a smaller diameter tube shaped top on a flared out box top.
