Specifications include, but are not limited to: Item #1: Hi-rail Welding Truck Typical Units: CUSTOM TRUCK spec 538C, ASPEN EQUIPMENT combo welding truck, BNSF spec 538 provided all of the following minimum specifications are met. Weight: The chassis shall have a minimum GVWR of 29,000 pounds and a maximum GVWR of 33,000 pounds. Engine: Cummins Diesel Engine or ARRC approved equivalent Shall be Tier compliant and built by the manufacturer Shall be winterized to protect to minus 50 degrees Fahrenheit Drive Train: Eaton Fuller FR-9210B Manual Transmission or ARRC approved equivalent Chassis: Extended cab chassis Exterior color: White Tires: All tires to be 11R22.5 size Cab: Air conditioning: To be OEM