Specifications include, but are not limited to: The cab and chassis will be a current model with a minimum of 19,500 lbs. GVWR, extended cab, four (4) wheel drive with dual rear wheels, a maximum wheel base of 167.9 inches with the length between the cab and rear axle of 60 inches suitable for a custom body and a minimum of 34 inches between the frame rails. The interior will have air conditioning, six (6) ceiling mounted up-fitter switches, a minimum of two (2) 12-volt power points on the dash, driver side, right front passenger seat and front seat side air bags, four (4) wheel vented disc brakes with Anti-lock Brake System (ABS) and a fuel pump inertia shut-off. The exterior will have intermittent wipers and two (2) tow hooks in the front and roof clearance lamps. The truck will be powered by a 6.7 Liter, V-8, B-20 capable, diesel engine, have an automatic transmission with a rear axle ratio which shall provide sufficient pulling and a road speed of 70 MPH. Unit shall have an all-steel or composite construction and minimally include the options listed below. The cab and chassis shall include emergency vehicle prep option.