Specifications include, but are not limited to: ENGINE: Diesel, liquid cooled, minimum 40 PTO HP, 3 cylinder (minimum), turbocharged, minimum of 110 CID, Tier IV compliant. TRANSMISSION: Mechanical or Hydrostatic. Mechanical transmission choices shall be limited to no less than 12 speeds forward /12 reverse. CLUTCH: Heavy duty, multiple wet disc. REAR AXLE: Planetary final drive. Flange axle, with single, multi-position, steel rear wheels. WIDTH: Wheel to wheel outside width maximum of 80 inches. LENGTH: Front pin to hitch/drawbar length maximum of 163 inches. MFWD: Mechanical or electro-hydraulic engagement with limited slip differential. Steel front wheels with standard rated tires, compatible with the rear tires. To include mounted front fenders. TIRES: Bias ply, front/rear, 6 ply or equivalent rating (minimum), agricultural or R1 tread. Tire brands limited to Firestone, Goodyear, Titan or Michelin.