So, my priorities being what they are, I'm thinking ahead here. We are planning a move to Idaho in the relatively near future. As such, I will need YOM plates for my 39 GMC pickup. My problem is this. I can't seem to find much information on vintage Idaho plates, and what would be the proper plate for a 1/2 ton pickup. I found one site that lists the following categories: Truck, Flat Fee Truck, Farm Truck, and Commercial. In California, I have commercial plates for a pickup. I know Idaho uses a county code, so knowing we are headed to Kootenai county, I guess I want a K code plate, but what is the proper category, and what does that look like? Any info would be most appreciated! Thanks!