I am sure the truck is a Studebaker. I couldn’t find a clear picture of a Studebaker truck, but I did find a Studebaker car. If you compare the detail around the hole for the starting handle they look identical. The picture is from
https://car-from-uk.com/sale.php?id=3516&country=uk
The radiator script is from
https://commons.m.wikimedia.org/wiki...01-13_3144.JPG