did these running boards come on 3/4 ton trucks ?
From Tim's earlier post it looks like they were only offered on 1/2 tons
However, I am pleased to report that there was an Option No. 389 in 1947 for only the 3104 model: Wide Running Boards, " . . . ideal for newspaper or other types of jumper distribution." I'll try to scan a photo. The illustration does not show a seam, but it is not a photo and the artists took liberties back then.