Specifications include, but are not limited to: Engine 300 HP Diesel (Cummins or pre-approved equal); Block Heater 1000 watt (minimum); Torque 860 ft-lbs (minimum); Gross Vehicle Weight 58,000 lbs (minimum); Rear Axle Capacity (Tandem) 40,000 lbs -Hendrickson walking beam to be equipped with bronze bushings at center points, fore & after with transverse torque rods or TuffTrac with fore & after transverse torque rods. Shocks on both axles. Heavy duty axle housing; Traction Control Driver controlled traction axle lock for both axles of tandem Front Axle Capacity 18,000 pound axle, tapered springs and shocks BBC Dimension 100 inches (minimum); CT Dimension Dimensions to be determined by chassis manufacturer based on equipment specified for each truck; Turning Radius Shall be the shortest possible with this specification; Tires 11R22.5 mud and snow (Goodyear G177 16 Ply or equivalent) on rear. 315/80R 22.5 18-ply highway tread on front. All tires shall be radial tubeless type; Wheels Ten-hole type, with front wheel oiling hubs; Spare One spare rear tire mud and snow mounted on spare wheel for each truck; Transmission Allison 3000RDS; Rear Axle Ratio To be as necessary to provide a top speed of 60 MPH with the specified transmission and tires. The Public Works Director, in writing, prior to ordering the unit, shall approve the axle ratio.