Detroit Series 60 12.7 L 470 hp Engine, Engine Brake, Eaton Fuller 8LL Manual Transmission, Double Differential Locks, 12000 lb Front Axle, 40000 lb Rears, 34 in Flat Top Sleeper Cab, Aluminum Wheels, 11R22.5, Airliner Air Ride Suspension, 225 in Wheelbase, Wet Kit, 42 in Sleeper