It'* been a few years, but I used to drive one of these:
Cab: Crew Seating: 2-4 Man
Seat Design: Fore/Aft Adjustable
Steering Type: Power Assist
Engine: Manufacturer: General Motors, Diesel, 8-cyl, 6.5 L, Naturally Aspirated
Rating: 150 hp @ 3600 rpm, EPA-Certified
Fuel: Diesel, DF-2, JP-4, JP-8, VV-F-800
Cooling: Water, Radiator
Fan: Engine-Driven, Clutch Type
Transmission: Manufacturer: Allison, Fully Automatic
Speeds: 3 Speeds Forward/ 1 Reverse
Transfer: Full Time All Wheel Drive, Integral Transfer Case
Maximum Speed: 55 mph Governed @ Gross Weight <---NOT!
Range: 275 - 337 mi.
Maximum Grade: 60%
Side Slope: 40 deg.
Fording: Without Kit: 30", With Kit: 60"