John Deere Large Frames

As said before in the 30 and 40 series projects, these three tractors are the top dogs of their own series' when it came to raw horsepower and strength.  Aside from the 6030, these three ruled the John Deere market in the more than 120 drawbar horsepower category. These tractors were really the pioneers of high horsepower row crop design.  For the 30 series, the 4630 was a welcoming power boost fr…