9N The first tractor of the series was the 9N, the first tractor to have both three-point hitch and a rear
power take-off (PTO). The 9N was first demonstrated in
Dearborn, Michigan on June 29, 1939. Its model name reflected a model-naming system using the last digit of the year of introduction and a letter for product type, with "N" for tractors (hence
9N). Like the
Farmall, it was designed to be a general-purpose row-crop tractor for use on smaller
farms. An extremely simple tractor, the 9N was fitted with the Ferguson system three-point hitch, a three-speed transmission, and featured footpegs instead of running boards. The 9N's relatively tall and wide-spaced front wheel design resulted in somewhat sluggish steering and reduced maneuverability compared to competing machines such as
John Deere's Models A and B, and the
Farmall "Letter series". The 9N had variable front
track, a valuable feature for row-crop
cultivation, via front half-axles that could be slid in and out and pinned in place. It also had variable rear track via the reversible offset of the rear wheel design (flipping the rear wheels around 180°, moving the formerly inboard side to the outboard side, widened the rear track). Uniquely, the exhaust was routed underneath the tractor, much like an automobile. All 9N tractors were painted dark grey. This tractor has a rear PTO, which could be used to drive three-point or towed implements. The Ferguson hitch was designed to solve some of the problems found in the earlier
Fordson tractors, such as flipping over if the
plow hit an obstruction. The upper link also would adjust the hydraulic lift to use the drag of the plow to improve traction when engaged. This was known as draft control. During the
Second World War, the
US Navy used the 9N on board their
aircraft carriers for towing aircraft and was nicknamed the "Moto Tug". The
United States Air Force and
RAF also used it for towing aircraft. The original 9N engine was a four-cylinder engine and was designed to be powered by distillate fuels. The engine shares the same bore and stroke sizes as one bank of the Ford V8 automobile engines. A few standard Ford auto and truck parts, such as timing gears and valve tappets, were used in this engine. The ford 9N engine was a side-valve, four-cylinder engine, with a bore, stroke, providing a displacement of . The transmission was the standard three-speed. The finished tractor weighed , and initially sold for US$585. This was an advantage, as tractors from other manufacturers cost almost twice as much.
2N The 9N was revised a number of times, until being relaunched as the
2N in 1942. The 2N still came in dark grey, but now had added improvements, including a larger cooling
fan and a pressurized
radiator. However, the 2N, like the 9N, still had only a 3-speed transmission, a disadvantage compared to many tractors at the time, such as the
Farmall A and
M. By this time, wartime regulations had imposed manufacturing economies, and some 2Ns can be seen with all-
steel wheels.
Batteries were reserved for the war effort, so the all-steel wheel tractors came with a
magneto ignition system instead of a battery and had to be started with a hand-crank. Introducing a new model name also allowed Ford to raise the price of the tractor. Wartime price controls prevented the raising of prices on existing models, but they could not determine the price of a "new" model. Despite the model name change, the
serial numbers continued to be prefixed with "9N". After the war the steel wheels and magneto system were replaced with
rubber tires and batteries, respectively.
Ferguson and Ford part ways In 1945 due to Henry Ford's failing health,
Henry Ford II, his grandson, took over the Ford Motor Company. Since the original agreement between Ford and Ferguson was sealed with a handshake (versus a written
contract) and included the notion that either party could terminate it at any time without reason, Henry Ford II didn't feel the need to continue to honor it. Ferguson was furious and sued Ford Motor Company. A few years later
his Ferguson interests were merged with Massey Harris, a Canadian company, to become
Massey Ferguson.
8N Official production of the
8N tractor began in July 1947. Equipped with a 4-speed transmission, this model was destined to become the top-selling individual tractor of all time in North America. The most noticeable differences between the 8N and its predecessors was the inclusion of a 4-speed transmission instead of a 3-speed in the 9N and 2N, and an increase in both
PTO and drawbar horsepower. The other big change on the 8N was the addition of a 'Position-control' setting for the hydraulics. This change was made partially to improve flexibility in varying soil conditions, and partially to evade Harry Ferguson's patent on the hydraulic system. The original automatic draft control on the Ferguson system would allow the depth of the implement to vary based on soil conditions, which did not work well for some implements. The new Position Control setting bypassed the draft control and allowed the implement to remain at a consistent position relative to the position of the Touch Control lever. A continued drawback to this series of tractor, was the lack of a "live" PTO. Without a live PTO certain implements such as brush cutters which store inertial energy could send that back into the transmission. This would cause the tractor to surge forward if the clutch were disengaged. This was addressed with the advent of the PTO overrunning coupler. The 8N was equipped with running boards and was painted lighter gray on the sheetmetal and red on the body. It was the first Ford tractor to feature a clutch on the left side and independent brakes on the right. The wide-spaced front wheel design of the 9N and 2N was retained. In 1950 the 8N design changed to feature a side-mounted distributor, as well a Proofmeter (combined speedometer, tachometer, hour meter) located on the lower right portion of the dash. The Funk Aircraft Company offered conversions for Ford Tractors until the factory burnt down in late 1952. ==Replacement==