Law suit with Ford Motor Company started in 1944 following the decision of Henry Ford's grandson Henry Ford 11, to end their agreement. The law suit wasn’t settled until 1952.
Harry found himself without a tractor. His response was typical, returning home to design another.
Harry Ferguson with all the features that had proved successful in previous models developed the much loved and admired TE20. The initiative was backed by the British Government and was built by the Standard Motor Company Banner Lane, Coventry. The factory had been used as an ammunition factory during the war.
With key improvements, such as the four-speed gearbox, overhead valve engine and better handling, this would prove to be the most popular of all the tractors in the Ferguson range. By 1956 over 500,000 of these "Wee Grey Fergies" had been sold. Farmers loved its simplicity and ease of handling and it remains popular today.
In August 1952 Harry negotiates with James Duncan, the chairman of Massey-Harris (a large firm in Toronto, Canada) regarding a possible merger. On August 4th 153 Ferguson merges with Massey-Haris and forms Massey-Harris-Ferguson which becomes the world's largest manufacturer of agricultural tractors and machinery.
The Ferguson FE35 came about as a result of the demand for larger tractors to handle the growing complexity and of evolving machines and implements. The new tractor was developed at Harry's factory in Detroit.
The new tractor incorporated a larger engine, improved hydraulics and workload capacity and a larger size. When Massey Harris of Canada merged with Harry Ferguson Ltd, they immediately brought the project forward and the FE35 became the mainstay of Ferguson tractor production.
The rapid response hydraulics, diesel engine and increased capacity allowed the FE35 to replace the TE20 in the affections of farmers, who were attracted to a larger tractor which contained all the features of a smaller one.
In 1954 at nearly 70-years-old, Harry retired from tractor production. He retired as chairman and sold his shares in the company to the other directors for approximately 3.75 million pounds. He decided to devote himself to other projects, some of which we still benefit from today.
In 1958 Massey-Harris ferguson became known world-wide as Massey Ferguson - a name it still retains. Although tractors continue to evolve, Harry Ferguson's basic design has remained an integral feature. That will continue to be the case for many years yet, for the simple reason that implement-hitching arrangements have still not managed to improve on Harry's remarkable 1933 invention.