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Will 9n sherman trans. fit in a 8n??????????

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Archie KY

02-15-2003 15:38:48




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I have a 49 8n and I found a 9n with the engine apart with a sherman trans in it for 800.00. Is this a good price or not?He said the fellow he got it from told him it had a noise in the engine,said he gave 800.00 for it.Was going to rebuilt it and he found a 601 for a good price.THANKS Archie in KY Were getting a ice storm now.




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dale

02-17-2003 08:44:56




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 Re: Will 9n sherman trans. fit in a 8n?????????? in reply to Archie KY, 02-15-2003 15:38:48  
i have a sherman combo for an 8n i would like to sell, email if interested



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Chris(MI)

02-15-2003 17:47:58




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 Re: Will 9n sherman trans. fit in a 8n?????????? in reply to Archie KY, 02-15-2003 15:38:48  
I believe some 9N's had straight cut input shafts and 8N's had helical cut. Make sure your sherman shaft matches your tractor's. Sounds like a good price to me. Good luck.

Chris



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Dell (WA)

02-15-2003 20:36:53




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 Re: Re: Will 9n sherman trans. fit in a 8n?????????? in reply to Chris(MI), 02-15-2003 17:47:58  
Chris..... ...you are correct about early 9N's having straight cut tranny input gears. As best as I've been able to figger it out, sometime in 1942?, Ford changed the N-tranny input gear/countershaft gear to helical cut. Ford stamped an "HX" id on helix gearbox lip somewhere.

Ford did provide a dealer installable helix gear up-grade kit for early 9N's that wanted to pay for the change. Who knows how many did? I don't know if the helix gear kit parts are still available.

As best as I've been able to determine, all Sherman aux trannys had helix output gear to mate with N-Tranny helix countershaft gear..... ...Dell

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Dell (WA)

02-15-2003 15:55:01




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 Re: Will 9n sherman trans. fit in a 8n?????????? in reply to Archie KY, 02-15-2003 15:38:48  
Archie..... ...I hate giving price values on anything tractor wize. I've been hearing $500 for 3-speed combo Sherman aux trannys on E-Bay. Hi-lows are less. Don't know anything more.

I do know that any Sherman that fits a 9N will also fit an 8N.

And if you want a Sherman aux tranny in your 8N, a tranny found innna your own spareparts tractor is worth more to you than a tranny not found. I'm glad that my 8N has a 3-speed Sherman. When I bought it, I didn't even know it was there, dumb luck..... ....Dell

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Archie KY

02-15-2003 17:49:08




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 Re: Re: Will 9n sherman trans. fit in a 8n?????????? in reply to Dell (WA), 02-15-2003 15:55:01  
Thanks Dell



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RON CA.

02-15-2003 17:47:47




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 Re: Re: Will 9n sherman trans. fit in a 8n?????????? in reply to Dell (WA), 02-15-2003 15:55:01  
Howdy Dell,
Can I assume the reverse is true? Will an 8-N sherman fit a 9-N? Also is it possible, for a good machine shop to repair (replace) a brocken tooth on the output shaft of a sherman? Thanks in advance Dell.
As always, respectfully RON CA.



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Don, Luling LA

02-16-2003 04:24:27




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 Re: Re: Re: Will 9n sherman trans. fit in a 8n?????????? in reply to RON CA. , 02-15-2003 17:47:47  
Ron,
Gears pretty much can't be repaired. The reason is that they are cut then they are hardened. Once hardened it's about impossible to do any work on them for repairs because the matal is too hard to weld on, the welds will just break as will the gears after welding. You might be able to find a machine shop to cut you another gear but would bet it wouldn't be cheap.
Don



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Dell (WA)

02-15-2003 20:27:16




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 Re: Re: Re: Will 9n sherman trans. fit in a 8n?????????? in reply to RON CA. , 02-15-2003 17:47:47  
Ron..... ....That a qualified "maybe" an 8N Sherman will fit a 9N.

From what I've been able to determine all Shermans had a "helix" output gear to mate with the N-Tranny's "helix" input countershaft gear which appeared sometime in 1942. 9N tranny input gear was straight cut and noisey, farmers complained, Ford made a change to quieter and stronger helix cut gears.

Ford supplied a tranny up-grade kit for 9N owners that wanted to pay the dealer to install the quieter helix gears. (takes 2, one for the input shaft to drive the tranny lower countershaft gear cluster. I don't know if the helix gear up-grade parts are still available.

If your 9N has straight cut gears, the Sherman won't fit. I'm told that there is a special helix id stamped into lip of helix trannys somewheres. Looks kinda like cap "HX".

Repairing any gearteeth is generally beyound the capablility of most machine shops. And if you can find a machine shop that can repair your broken gear, you'll probably have a heart attack at the cost. And sorry, I don't know of any Sherman parts places..... ...Dell

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