When it rolled off the assembly line in 1979, I think there were three seats in the cab (and they weren’t comfy bucket seats like these). The middle seat has been replaced with a storage compartment.
The floor of the tub (rear part of the truck) is covered with a rubber-like material. When it gets muddy, hose it out. I’m not fond of the rear seats and will replace those with simple pads (no back).
The longer, black lever with the white tip is the parking brake. The yellow knob engages four wheel drive when you push it down. And the red shifter engages the Low Ratio gear. Also known to some as “momma low.” The black box with hoses coming out the sides is the heater. Three settings: to the windscreen; to the floor; or to both.
If that steering wheel looks bigger than what you’re used to, it is. No power steering on this baby so you need that big wheel.