John L. - Here's a zoomed in screenshot of Rich'sToys '47 Loadmaster fuel tank in the first attached pic below. The second pic is from a repop of the 1947-54 Chevy Truck Factory Assembly Manual (FAM).
It applies to the majority of the 1-1/2 ton model trucks, with the tank mounted to the outside of the frame as shown in Rich's picture.
Hope this is of some help.
