I have some detail fotos of the utility body at work, so I'll add them tomorrow. It is built of heavy gauge aluminum throughout and has two slide outs, also aluminum. One had a small gasoline powered 115v generator, to power the scene lights, cold weather coolant heater/fluid pump and the 115v outlets in the engine compartment, which powered the hot plates and blankets to warm the batteries. The other would slide to either side and was full width of the body. The front bumper had a winch installed at some time and had a very crude looking extension to extend the bumper forward. The winch wiring is still dangling below the radiator. This truck had three bucket seats, two in front and one at the right rear, which was designed with a space in the back pad to allow a person sit there while wearing an oxygen tank on his back. The left rear seat area had an aluminum rack for oxygen tanks. The controller for the overhead lights was removed before I got the truck, darn!