2016 PETERBILT, 579, - Conventional Trucks w/ Sleeper, Paccar MX-13, AMT, 2016 Pete 579 6x4 80 inch Aero with double bunk, auxiliary power unit, TriPac APU, MX13 455, Fuller Advantage Auto 10 Speed, aluminum rims, dual 120 / 110 gallon tanks, cruise, power doors and windows., 455 Horse Power, Air Ride Suspension, Wheels, 234 Wheel Base, , 40000 Rear Axle lbs, 2.47 Ratio, Mileage: 492235, Number of Speeds: 10 Spd, Overdrive?: yes, Front Axle lbs: , Engine Brake?: yes, Tandem Axle, 6x4 Drive.