Allis B and C steering questions

Lumbersawyer · Dec 1, 2019

I am looking at various differences in the B and C steering parts. I know that the C is opposite gearing than the B because the arms are, C up and B is down. I have been searching pictures on the net and it seems to me the B steering arms and drag link have a ball formed on the main arm and on the bell crank and are not a separate part. The C steering parts have a replaceable ball that fits into the gear box arm and front arm with a taper and nut like a tie rod on a automobile. Am I correct in my observation? I saw a short steering arm advertised as a Gemmer part but it had the tapered hole for the replaceable ball. Should it not be a Ross arm? I know that certain year C's had a shorter front and rear arm compaired to my 43 C with longer arms. Any knowledge you guys have on this is appreciated.

Dick L · Dec 2, 2019

Your observations are correct! The C's steering box arm and shaft has a large diameter shaft with a different spline. The diameter shaft is also longer with a support bracket bolted to the torque tube. The parts are not readily interchangeable.

This B has the B steering box with a modified arm to use with a C front end.

<img scr="https://media.fotki.com/2vEds5LxevZ4.jpg">

Dick L · Dec 2, 2019

Not sure what happened to the picture below.

Aaron SEIA · Dec 2, 2019

Dick, wouldn't that steer backwards? The C front end has to have the C box and the pitman arm has to be up, doesn't it?
AaronSEIA

Lumbersawyer · Dec 2, 2019

On a wide front end the axle bell crank and drag link move forward to turn left. It is the same on a narrow front, the drag link moves forward to turn left, it's just up on top of steering box not below. What I want to do is use my C steering box with a shorter arm, because my C steering box has virtually no play in it, steering wheel moves a inch and the arm starts to move. The length of the bell crank arm on a wide front is shorter than the narrow front arm on it's pedestal. So, If I can find a C short arm for my steering box I'll install a drag link that has a couple 45 degree bends in it, one comming down from the steering box, then a 45 degree bend behind the axle going up to meet the one from the steering box beside the motor. It will look OK and function well.
Here is a picture of a arm I found that might work if it fits a C steering box. It has the replacable tie rod ball with the tapered hole.

Dick L · Dec 3, 2019

If your handy with a welder you can make about any combination work. If you take a pencil and hold it in the center and rotate it back and forth like the steering arm you will see that one end pushes while the other end pulls. If I remember right the splines on the C steering box arm and shaft are timed with a wide spline. This would be where your saw and welder comes in to change it from push to pull. The steering arms are cast steel rather cast iron so they are able to be welded as well as heated and bent to clear tractor parts if needed.

steve(ill) · Dec 3, 2019

just take your C arm and cut off the arm part from the spline hub.. shorten the arm as you want and weld it back onto the hub, checking where the HUB has a blank spline to index it to the gear box shaft.

Dick L · Dec 4, 2019

No sir: it does not steer backwards!

Allis B and C steering questions

Lumbersawyer

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Dick L

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Dick L

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Aaron SEIA

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Lumbersawyer

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Dick L

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steve(ill)

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Dick L

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