Specifications include, but are not limited to: 1.Unit: a.Heavy duty 6 wheel dump truck Cab & Chassis with Gross Vehicle Weight (GVW) of not less than 43,000 pounds; such as a Workstar SFA, Freightliner 108SD, or equal. 2.Wheelbase and Cab/Axle (CA): a.CA shall be sufficient length to accommodate a 10’ (5-7yd) dump body. Chassis must also accommodate plow rigging. Measurement should be 120” CA; and b.AF Dimensions must allow for a minimum 12” of frame to extend past rear tires to facilitate mounting the dump body and brake controls with lighting adapters for trailer. 3.Front Axle: a.20,000 lb. minimum capacity I-Beam type, such as Meritor FL941 or equal; b. Suitable for extreme snowplow and dump truck service, 9500lb left spring and 10,500lb right spring; c. Oil lubricated and sealed wheel bearings with visible oil supply; d. Front springs should be heavy duty designed to suport the plow and wing in travel position, under full ballst load with no appreciable sag or deflection on either side; e. Spring mounted hardware and brackets shall be designed for extreme service; f. Front axle should be the set-back type; and g. Must have air bag assist spring for the right side to aid spring deflection.