James Pickering
In a posting on my "Late 1940s woodworking hand tool kit" thread Pam Niedermayer wrote:

"What did you use chisels for in the truck cabs and bodies? Were they wooden framed?"

I don't like asking fellow participants to go to an off-board web page, but I think that the link to the one at the bottom of this post provides a detailed answer to Pam's question -- the content is too extensive to copy and paste here:

The links at the bottom of the web page lead to some great photographs of such trucks.

James