John Deere 4020 for sale Minnesota – 1970 model year. Drive: 2 WDHP: 101. Cab: No Cab, Front Axle: 2WD, Transmission: Syncro, Guidance-ready: No, Guidance Receiver: No, Guidance Display: No, Rear PTO: 540/1000, Rear Tires: Singles, Tire Width: Mid, Loader: No, Gas engine