I just noticed this thread. Don't look in the Fire Truck section much. What's interesting about this truck is, it has the fenders of a 400, 450, or 470 series GMC, but has 5 lug front, & 10 lug rear small lug studs, as the 300, & 350 series trucks do. Also that front bumper looks Factory, but wraps around the fenders more than usual. I'm curious as to what series this actually is ? If it is a 400, 450, or 470, I'd guess that it's a live tandem. That's a cool truck.
