Farmall M equal to what JD

Just bought an Farmall M and sized it up to my 50 JD A and there is not much size differnce. I always though Farmall M and JD G was more a like both being a 3 btm plow tractor depending on what kind of dirt your plowing. I looked up HP on tractor data.

Just want to here your opinion and please no John Deere and Farmall War. Each has there own opinion which is best.

I also thinking JD B Farmall C, JD A Farmall H, JD G Farmall M

I am not sure about the exact horsepower specs but I am pretty sure that most JD A's will kill a Farmall H. I have always thought that John Deere A's were pretty close to a Farmall M. I know that the neighbors M wont hold close to my 46 A with a powerblock(obviously not totally stock). My 520 will pull a 3-14 in good conditions though. So I think it depends what soil you are in.

I am going off tractor data. Says JD A 2 btm and Farmall M 3 btm. Maybe Farmall Super M same as JD G who knows

not being a jd expert by any means, but i think the jd a and the m are the match, the g was a later tractor, the jd b and the farmall h were a pretty close match size wise. the jd a was about 34-38 hp, m around 37 or so. the jd b was around a 27 hp tractor, close to the h.

Semperfi, some of your matchups would depend on what year JD and IH you were looking at.

The early John Deere B would be a good match for a Farmall C but the later B is a good match for a Farmall H. The early B's were made before IH started making the C, so the JD B to Farmall H would likely be the most relevant.

The M is really a better match for the G due to weight and size than for the A.

The Farmall H won't keep up with a John Deere A under field conditions. The JD A is heavier but not like the Farmall M.

When I was growing up in central Iowa, a Farmall M and a John Deere G would pull 3-16's, a John Deere A would pull 2-16's and a John Deere B and a Farmall H would pull 2-14's. These were all late model but no t new tractors at the time.

I have always worked under the impression that a Farmall A and M were matched with a Deere M and A. The H's and B's were also similarly matched.

Just my 2 pennies...

I havent looked at the data, but I have never seen a Later John Deere A pull under a small 3 bottom here. My A has been played with a bit and it will pull a 4-14 in good sandy conditions.

I got the chuckles last year when we had a local farmer bring out his 4010 diesel with a 4-16 and he couldnt gain any ground on me with my A and a 4-14. Many people told me that they have never seen an A pull this good. On that same note most B's are pulling 3-14's and M's are pulling 3-16's around here. Every once in a while you see a M pulling a 4 bottom.

Tom

Thanks! I should have stated that my Farmall M is a 47 and my JD A is a 50 and I also have a 51 JD B so late models.

I dont farm all I do is brush hog with my fords on the side and collect tractors and enjoy working on them.

I have a 3 point on my Jd B that I pull a 2-16 in my garden and if I go to deep it will stop it in its tracks, not from power just not enought weight

What parts do you live in?

I plow on a river bottom, nice sandy ground. I have only tried to pull a 3-16 with my A in tough ground, so im not sure as to what it can do in that. Tom

It all depends on the year of the tractor. There were a lot of variations of the JD A and B over the years. When IH changed the H and M they became the Super H and M.

In 1939 the gas Farmall H had 26.2 belt hp and the distillate H was 23.3 on the belt.

A JD B in 1938 was 18.53 on the belt and in 1940 went up to 20.52 hp. When the late styled B came out in 1947 the gas version was rated at 27.58 belt hp.

Similarly a 1939 Farmall M put out 36.6 on the belt.

A 1939 JD A put out 29.59 on the belt. That went up to 38.02 when the late styled A came out in 1947.

A 1937 JD G was rated at 35.91 on the belt. In 1947 they were rated again, this time at 38.10 (G's were always run on distillate)

For general discussion, the early Farmall M was close to the early JD G, both 3 plow around here. Towards the middle (post war) the G had its power raised where they were 4 plow around here. Variations occur when you talk about all fuel vs. gasoline for each, gasoline putting out more power. Early JD B was 2-12's at best and late B's were 2-14's very well. Farmall H was 2-14 straight through. JD A was 2-14 or 16 at beginning and 3-14 or 16 at end of production. Super M was 3-16 at least and usually pulled 4 bottoms.You also have to take into account soil density (sand vs, clay).
Bottom line the JD tractor line went through revisions including power because production began 4 plus years prior to Farmall letter series. JD had to raise power and transmission speeds to compete. During the war, manufacturers had to divert resources to the war effort. Accordingly revisions to most product lines waited till the late 40's. Reading each manufacturer's history, it was always a gamble as far as establishing features and horsepower on a unit that would not be released 4-5 years into the future. The reality was often different than the expectations.
Again, this is a general summary and I will leave it to others to cite specific changes to specific models in specific years. Back to spraying I will go!

It all depends what year you are talking about plus a IH M with firecraters will make a hugh difference. My 53 SM with 4.125 firecraters will run close to 60 hp. It would take one heck of a G to plow with it, I never did find one.

Not starting a fight, but is that the M you pull with?

just wondering about heat in the engine.

No, that old SM I plowed with just had thin sleves and 4.125 firecrater pistons, everything else was stock but the head was shaved a little. A MW stroker motor in a M would run 70-75 hp and you could farm with them without over heating. My pulling SM is 360 cu. but I wouldn't be afraid to go to plow days with it but it would use a lot of gas.

And a DC CASE ..whoops em " all ...LOL..

There's always one...LOL... Case DC got the weight and power cant say I ever seen one at a pull or I might not noticed it