VNL64T770, Heavy Duty Trucks - Conventional Trucks w/ Sleeper, Cummins ISX, 13 Spd, Great running sleeper. 10th Anniversary edition, Cummins power, 13speed, clean inside with great sounding radio. Volvo aerodynamics good fuel mileage. Drives real smooth, nice and quiet on the inside, very comfortable driving truck. Come check it out., 400 Horse Power, Air Ride Suspension, Aluminum/Steel Wheels, Wheel Base, Fair, Tandem Axle, Ratio, Double Bunk