What was this used for?

Royse · May 27, 2019

It's an auxiliary transmission of some sort in the left rear axle of a Cub.
The Cub is about a 1948.
I'm not sure how it even works, since it's in one axle only, but you
flip that lever and it provides hi and lo range.
Anyone know the brand and original purpose/application?

Bob · May 27, 2019

(quoted from post at 18:33:03 05/27/19) It's an auxiliary transmission of some sort in the left rear axle of a Cub.
The Cub is about a 1948.
I'm not sure how it even works, since it's in one axle only, but you
flip that lever and it provides hi and lo range.
Anyone know the brand and original purpose/application?

Royce, you're gonna LOVE the answer to this one!

Sound almost like a familiar deal?

For it to work, obviously the differential gears have to be ion constant motion, as they only get installed one one side.

Royse · May 27, 2019

Thanks Bob! Yes, I suspected it would be something like that, but
I had never seen one installed in a Cub. Fords, yes, but not a Cub.

Janicholson · May 27, 2019

They can be installed on both sides, giving way low speeds possible. Jim

john *.?-!.* cub owner · May 27, 2019

I have had one for several years. It was made to slow the cub down for running the Howard Rotavator, which is the Australian and British term for rototiller. It is also great for slowing down the tractor when mowing very heavy grass or weeds, etc. There is a spider gear in it much like the one used to get the low range in 4wd trucks. Except in this case it only slows down one axle rather than the whole drive train as is done in trucks. the differential compensates for the speed difference just like it were constantly driving in a tight circle. There are warnings in the manual to only use it to decrease speed, not to increase pull.

I had my Despeeder engaged using my Mott flail mower to mow weeds up to the top of my hood in a calf pasture that was not being used when the end of the mower caught a half buried railroad tie just as the rear wheels dropped into a depression where a water tank had set. The left rear axle snapped without even opening the governor. I have been very careful ever since when using it.

Howard is still in business, but there are no parts available anymore.

1946 BN IHC · May 28, 2019

Upon seeing this unit I looked up further on the gear reduction units.
>>>>>I FOUND ONE THAT IS PLACED BETWEEN THE CLUTCH AND TRANSMITION OF A FORD<<<<
I HAVE A QUESTUION ?? would the same unit work on a Farmall BN in the same way between the clutch and transmition?
Where would one find one to purchase?

Janicholson · May 28, 2019

To my knowledge, none exist. A creeper mechanism is possible using the hydraulic pump to power a hydraulic motor attached to the Pto. This requires the clutch to be blocked down. it is used for trans planting crops like tobacco. not for pulling implements. Engineering a device is possible but much more expensive than buying a hydro tractor to do the task. Jim

1946 BN IHC · May 28, 2019

Thank you Jim
I just saw the information and was curious as to the possibilities since the ford was between the clutch and transmition.
It has always puzzled me about an extra low gear. I am familier with the type IHC used and have pictures of it in my catalogue of files on IHC.
Thank you for your information.

Wm.

55 50 Ron · May 30, 2019

Sort of a type of Torque Amplifier like in later IHC tractors??

What was this used for?

Royse

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