Farmall M vs. McCormick Deering W-6

Anonymous-0

Well-known Member
I know that the M/D W-6 is a standard tread version of the Farmall M, but does it also have a lower center of gravity? My fields have some steep hillsides and I need something more stable than a row crop version. (My 8N is great as far as center of gravity but I need something with more h/p) I've looked at the tractor data but can't find any reference to the difference in height or ground clearance on the farmall vs the M/D. Any info is welcome.
 
The W6 or WD6 are around 8" lower then the M. The MD which i think you are referring to is same as the M just a diesel version.

If you move the wheels all the way out on a M they can be made very stable, made more so with added ballast.


Andrew
 
The W series is substantially lower, probably 6 to 8" lower. The wheels are less adjustable for width, but can be set pretty wide. The wide fromt end adds just a little to the stability (though it looks like it would ad a lot), it still pivots in the front. If I were going to do the hill side thing, I would conider making an axle stiffener that put spring pressure down on each side of the front axle as they are pushed upward from the position they assume on level ground. Stiff leaf spring (quarter eliptic design) that just touch the axle when on level ground, and compress on the side that is raised would do it. Jim
 
W6's are a good 8 inches shorter than M's which gives them a much lower center of gravity and more stability. As mentioned, if working on a steep hill you may want to make the front axle more rigid. Also, if you need more power, the W9's have about 45 HP.
 
In very early 1940 my grandfather purchased a Farmall M rather than a crawler or W series tractor so that the river terraces on the farm could be plowed as high up as they had been in earlier years with horses but could not be plowed with the 10-20. The outbreak of war meant that production was to be extended as much as possible. IHC's comment was that the Farmall M on rubber was much more useful than a crawler and with the wheels at the ends of the axles gave stability. Most farmers around us later used W-6 tractors but they did not have the terraces, we were the only farm in the area with a Farmall. My father did overturn the M in 1945 when it stalled going up the lower part of a terrace and started to run back on the plow. Touch the brakes brought the front up and he bailed out. I remember the agents with shear-legs up-righting the tractor and it was replaced with a new Farmall M this time with a wide front axle.
 
The W-4, W-6 and W-9 tractors were often referred to as flat-land tractors, they have a relatively narrow wheel-tread and a short wheel-base.
 
In the later models such as the W-400 and corresponding F-400, the PTO shafts and the radiator caps are at the same respective heights.

Not sure why a W-6 and a M differ so greatly but it has to be the tires and the knuckles on the wide front M.

You can add alot of stability by half filling the rear tires with liquid ballast.

To follow up on Jim's suggestion regarding springs, the 650 and some predecessors used three transverse leaf springs in the front axle trunion. On the other hand, my W-400 does not have them and there is no room to install them. It would require a deeper trunion.
 
In the later models such as the W-400 and corresponding F-400, the PTO shafts and the radiator caps are at the same respective heights.

Not sure why a W-6 and a M differ so greatly but it has to be the tires and the knuckles on the wide front M.

You can add alot of stability by half filling the rear tires with liquid ballast.

To follow up on Jim's suggestion regarding springs, the 650 and some predecessors used three transverse leaf springs in the front axle trunion. On the other hand, my W-400 does not have them and there is no room to install them. It would require a deeper trunion.
 

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