1979 John Deere 4640 2WD Tractor, 7,675 Hrs Showing, 7.6L Diesel Engine - 155 PTO Horsepower, 8F-4R Powershift Transmission, 1000 PTO, 3-Point, 12' Dozer Blade, 14L-16.1 Front Tires, 18.4-38 Rear Dual Tires, NOTE: Transmission Issue - Tractor Does NOT Operate In Gears 1-4, SN: 011638R