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Ford Tractors Discussion Forum
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Re: Ford 971 Select-O-Speed -- What's It Worth?

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showcrop

03-14-2013 18:27:00
75.67.231.80



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Many people are leery of the SOS and discount significantly for them. However, the later SOSs are considered much better than the early ones, and many of the early ones were replaced by Ford with the later version. One easy way to tell which you have is that the early ones would free-wheel in three forward speeds while the later ones have engine breaking in all speeds.




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Larry NCKS

03-14-2013 18:50:12
70.195.67.106



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 Re: Ford 971 Select-O-Speed -- What's It Worth? in reply to showcrop, 03-14-2013 18:27:00  
It actually will freewheel in 5 forward speeds. It's just that 1&2 are so slow they didn't think it would be a problem and didn't mark the shifter in those positions.
An easier way to tell is to look at the casting # on the left side of the transmission. A 312259 above and behind the inching pedal is the original less desirable transmission. Anything else there is better.



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Ronald Wilcox

04-16-2013 17:39:23
75.220.190.1



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 Re: Ford 971 Select-O-Speed -- What's It Worth? in reply to Larry NCKS, 03-14-2013 18:50:12  
I am considering buying a 871 - year unknown as I couldn't find the serial number over the starter housing. I did see a number on the side of the SOS, but didn't write it down. Have reviewed some of the threads and am concerned (to some degree) about the SOS as I have a Ford Industrial 4400/loader that REALLY sluggish shifting into reverse.

I have a 1958 851 with a 5 speed (an bad engine). I am considering the option of replacing the SOS with the 5 speed if needed. I see someone did this to a 801 in another post - but current owner didn't do.

Can anyone tell me if is possible, and if it is, how difficult (and costly???).

New to forum, so open to critique .

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Larry NCKS

04-16-2013 18:28:13
70.195.68.252



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 Re: Ford 971 Select-O-Speed -- What's It Worth? in reply to Ronald Wilcox, 04-16-2013 17:39:23  
It would be better to start this in a new post (that's my critique :wink: )

It is very possible to convert from one trans to another and many would advise installing the 5 speed in place of the SOS. I'm not one of them! I'd sell the blamed 5 speed to one of its advocates and fix the SOS - if indeed there is something wrong with it.



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Mrs. Diamond

03-15-2013 06:32:59
216.99.65.10



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 Re: Ford 971 Select-O-Speed -- What's It Worth? in reply to Larry NCKS, 03-14-2013 18:50:12  
Thank you "Showcrop" and "Larry". I will check that number and get back to you (because I don't know what it means to "freewheel" :-)



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