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AC B with auxiliary 3 speed transmission


 
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worm
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PostPosted: Sun Jun 08, 2014 11:14 am    Post subject: AC B with auxiliary 3 speed transmission Reply to specific post Reply with quote

Found an AC B with a 3 speed transmission bolted in front of the the existing transmission. Was between the torque tube the the regular tranny. Was a perfect fit. The front fender brackets were lengthened and the seat mount changed. Looked factory. It made the tractor about 6 inches longer. Any idea what it was for? Gearbox had the words-Patent Applied cast in it. Are they common? Never had seen one before.
 
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JMS/.MN
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PostPosted: Sun Jun 08, 2014 12:18 pm    Post subject: Re: AC B with auxiliary 3 speed transmission Reply to specific post Reply with quote

Fay and Kraushaar"s book, Original Allis Chalmers, talks about AC experimenting with an auxiliary transmission on the Model C tractor.
 
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worm
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PostPosted: Sun Jun 08, 2014 2:21 pm    Post subject: Re: AC B with auxiliary 3 speed transmission Reply to specific post Reply with quote

Will try to put on a picture.
 
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worm
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PostPosted: Sun Jun 08, 2014 2:29 pm    Post subject: Re: AC B with auxiliary 3 speed transmission Reply to specific post Reply with quote


Picture

 
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Chad (mn)
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PostPosted: Sun Jun 08, 2014 5:19 pm    Post subject: Re: AC B with auxiliary 3 speed transmission Reply to specific post Reply with quote

Does it have 3 positions or two on the auxiliary transmission? It could be made by the Sherman company. I thought the Sherman transmission only had two positions but someone who has been around these will be more helpful. If it is a Sherman, it is fairly rare and makes the tractor worth more than the average B.
 
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worm
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PostPosted: Sun Jun 08, 2014 7:47 pm    Post subject: Re: AC B with auxiliary 3 speed transmission Reply to specific post Reply with quote

It definitely has 3 speeds.
 
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sandman2234
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PostPosted: Sun Jun 15, 2014 9:22 am    Post subject: Re: AC B with auxiliary 3 speed transmission Reply to specific post Reply with quote

I like your tractor, and would like to have a gearbox on one like that.
If the tractor or gearbox ever goes up for sale, I would be interested.
Nice find by the way!
Anyone one else have a gearbox like this for sale?
David from jax
 
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