1981 John Deere 7720 Turbo 2WD Combine W/853 Corn Head, 3,918 Engine Hours Showing, John Deere 6-Cyl Engine, 4 Gears W/Hydrostatic Drive, Manual Concave Adjustment, Rotary Chopper, 24.5-32 Front Tires, 12.4-24 Rear Tires, 853 8R30 Corn Head, Spring Suspension Operator Seat, Engine Shutoff W/manual Depressing Shutoff Arm At Injection Pump, SN: 460419