Specifications include, but are not limited to: 5.1 WEIGHT: The manufacturer's certified gross vehicle weight (GVW) rating shall be a minimum of 59,500 pounds. 5.2 CAB: The trucks shall be furnished with air cab mounts, front fenders, radiator grill, tilting hood, running boards and a coupe type enclosed cab. All glass used in windows shall be tinted shatterproof safety glass. There shall be separate heavy-duty vinyl bucket type seats for the driver and passenger that are equipped with seat belts. The driver's seat shall be air control. 5.3 DIMENSIONS: The wheelbase shall be so that it will have a clear span of 186-inches from the rear of the cab to the center of the tandem. 5.4 ENGINE: The engine shall be a Cummins in-line 6-cylinder diesel with not less than 330 horsepower at 2200 RPM; 1,000 Ft. Lbs. gross torque at 1450 RPM. 5.5 MUFFLER: There shall be a horizontal frame-mounted muffler beneath the frame of the truck.