Yup. 4wd.
That truck was a big hit with the kids, they were lined up asking permission to get in the cab (to honk the air horn) Brent was such a good sport about it too. Awesome turnout.
Before I saw that differential hiding under there I was thinkin' the truck could have the skinny singles on the front with those duplexes on the back for the Hot Rod Truck on steroids look :D