Farm Equipment - B steering gearbox-Ross vs Gemmer?

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B steering gearbox-Ross vs Gemmer?

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=209524
Printed Date: 30 Dec 2025 at 5:43pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: B steering gearbox-Ross vs Gemmer?

Posted By: CrestonM
Subject: B steering gearbox-Ross vs Gemmer?
Date Posted: 29 Dec 2025 at 1:19pm

Which gearbox is preferred? My B has a Ross and it turns hard. Jack the front end up and you can turn the wheel with one finger, so I know it’s not in the king pins. I drove a different B and it was night and day different, so easy to steer. I didn’t pay attention to what box it had. Does one brand tend to steer easier than the other?
Thanks

Replies:

Posted By: steve(ill)
Date Posted: 29 Dec 2025 at 1:28pm

i think the Gemer has 3 teeth inside compared to the Ross that has One tooth or "pin"...I have several tractors and everyone has the Ross.. I think it was way more common and probably cheaper...

Nothing wrong with the ROSS if it is built up right. Normally the pin wears and you get excessive slop.. you can turn the steering wheel 30 degrees and no movement of the tires.. the PIN is worn out... I have never had one DRAG as you said.. Normally that is in the king pins / bushings / drag link area...

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Like them all, but love the "B"s.

Posted By: steve(ill)
Date Posted: 29 Dec 2025 at 1:29pm

here are Dicks pictures of the ROSS...

https://public.fotki.com/DickL/tractor_parts/ross-steering-repair/" rel="nofollow - https://public.fotki.com/DickL/tractor_parts/ross-steering-repair/

and the GEMER

https://public.fotki.com/DickL/allis_chalmers_engi/allis-chalmers-c-ge/

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Like them all, but love the "B"s.

Posted By: steve(ill)
Date Posted: 29 Dec 2025 at 1:31pm

https://public.fotki.com/DickL/allis_chalmers_engi/allis-chalmers-c-ge/%20" rel="nofollow - https://public.fotki.com/DickL/allis_chalmers_engi/allis-chalmers-c-ge/

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Like them all, but love the "B"s.

Posted By: wjohn
Date Posted: 29 Dec 2025 at 5:15pm

Not speaking from specific experience with those gearboxes, so take this with a grain of salt, but you could have something worn anywhere in the steering linkage, or even the king pins, and when you have the weight of the tractor on it and then try to steer with the extra force it requires (vs. up in the air with no weight on the front wheels), it puts something slightly in a bind. Could be in the gearbox or anything else, perhaps?

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1939 B, 1940 B, 1941 WC, 1951 WD, 1952 CA, 1956 WD-45

Posted By: steve(ill)
Date Posted: 30 Dec 2025 at 8:23am

I would be looking at the bottom of the king pin / bushing area... Some binding when you put the weight on it .... not much to go wrong with the arms, and the gear box is normally SLOP, not binding under load.

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Like them all, but love the "B"s.