Detroit Series 60 6 Cylinder 525 hp Engine • Engine Brake • Eaton Fuller 18-Speed Manual Transmission • Differential Lock • 46000 lb Rears • Bunk Beds • Pure Air Electric Sleeper Air Conditioner • 315/80R22.5 Front Tires • 11R22.5 Rear Tires • Air Ride Suspension • 4350 mm Wheelbase • GVM 24 t • GCM 90 t