1929 farmall

Does anyone know the rear axle ratio on a 29 farmall ?and was there more than one ratio avaiable? does it by any chance have a two speed thru pto or anything like that? thanks lee

Lee,

I have a reference to a ratio, just not handy right now. Suffice to say, top speed on a 29 Regular was a blazing 4 miles/hour. The 32 F20 was a bit faster because of ratio changes.

Two speed PTO? not that I'm aware of. I have my "28" apart and no such thing there.

Heisler did make an Overdrive for the F-20. They show up on e-bay once in a while. Probably would bit the Regular. Allowed some highway speed but on steel?

The Farmall parts book gives the "spline shaft bevel pinion gear" (the small gear at the differential) as 13 teeth.
The "bevel ring gear" has 63 teeth. I do not see any numbers for the big outside gears.

Early F-20 advertising said that the F-20 had an "additional plowing gear," which was another way of saying that they put a gear between second and third on the original Farmall. I spent a lot of time on both a Farmall and an F-20, both on 36" rubber, and I can say with pretty good certainty that 1-2-3 on the Farmall correspond closely with 1-2-4 on the F-20, while the third gear on the F-20 is in between the 2-3 gears on the Farmall. On rubber, the top gear of both tractors gave a nice hauling gear on the gravel roads of the day--probably a little over 5 mph on 36" tires.
I never got to run the two tractors neck-and-neck, but after a while, you get a "feel" for these things and I feel pretty sure that my estimates for the speeds is close. When I can find my F-20 parts book, I'll see if I can dig up the transmission ratios for the two tractors and see how close they are.
By the way, I cannot find anywhere in the old IHC brochures I have that the Farmall was ever actually called "Regular" by IHC. They usually referred to it as "the original Farmall," and they were using this line right up into the 40s to emphasize how later models were descendants of the Farmall idea. It was not easy to tell an F-20 from a Farmall at a distance unless you knew what to look for (vertical exhaust pipe on the F-20), and even up close, you had to know some details (different air-cleaner, maybe lack of oil filter on the earlier Farmall, open steering versus enclosed steering, different seat brackets, and some other little things that you can't even see, like the PTO lever that works opposite on the two tractors--F-20 back for engage, Farmall forward for engage). If a farmer was asked, "Is that an F-20?," he was likely to hear, "No, it ain't an F-20, it's just a reg'ler Farmall." Only once have I see "regular" used in IHC literature, and it wasn't used as a title--it was something like "the regular Farmall," which I took to mean, the original, the ordinary one, not the F-20.

The large bullgears on each side are 80 teeth. That is by counting them in a pciture from when I had the dropped axles all torn apart last year.

-Jordan