Generally the 20 series tractors were rated with about 20 percent more power than the earlier John Deere tractors of the 40, 50, 60, 70 and 80 series. Some of the added improvements of the new 20 ...

John Deere is celebrating 50 years of tractor manufacturing at its ... has been the modular steel frame design introduced on the 6000 Series models in 1992. This enabled customers to ‘custom ...