Machine description: Cat 3406 6 Cylinder 14.6 L Diesel Engine, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, 12000 lb Front Axle, 38000 lb Rears, 50000.0 lb GVWR, Air Ride Cab, 63 in Flat Top Sleeper Cab, Alumi... more info about the 2000 Peterbilt 379.