Hi Kevin,
Welcome to MLU. You have come to the right place to get information.
Your Dodge is a good looking truck and looks like it won't be too much of a restoration.
Here in OZ we had quite a few Dodge D 60420.C, 3 ton 4x2 trucks with the turret opening in the roof and blitz wheels on the front.
Here are some photos of one I had a look at about 12 months ago. Not a tipper but a GS tray.
Regards Rick.
Sitting in a paddock for many many years, it is remarkably complete.
The back end showing the towbar.
ID Plate for the D 60420.C
Known as a D110L. over here.
16 inch x 10.50 tyres on the front and 20 inch x 7.50 on the rear.