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Ford 9N, 2N & 8N Discussion Forum
Show Parts for Model:

Hupp Dual-Drive

Author  [Modern View]
modyinnh

10-17-2012 09:35:16
130.189.10.63



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Hi all, I've got a '48 8N (front mount)with a Hupp Dual-Drive aux. trans as identified from John Smith's page. I can go plenty fast without the use of the Hupp. My question is: under what circumstances (other than tractor drag racing) would someone use the Hupp?

paul




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Ultradog MN

10-18-2012 03:34:45
184.100.106.5



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 Re: Hupp Dual-Drive in reply to modyinnh, 10-17-2012 09:35:16  
When you are very hungry and thirsty and on your way down to the American Legion for all you can eat tacos and cheap tap beers the over drive really comes in handy.
Beyond that, I think Hokie pegged it.
When I had the Dearborn buzz saw on the back I could get 540 PTO speed at a much lower engine rpm.
Saved fuel and less wear and tear on the engine.



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modyinnh

10-19-2012 10:13:45
130.189.10.63



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 Re: Hupp Dual-Drive in reply to Ultradog MN, 10-18-2012 03:34:45  
Well thanks for all the replies. Now all I need to do is fix the clutch!



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John Smith8N

10-17-2012 11:35:19
75.23.119.19



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 Re: Hupp Dual-Drive in reply to JMOR, 10-17-2012 09:35:16  
Most people find the Hupp Dual Drive handier in the low range, to slow the tractor down.



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Dell (WA)

10-17-2012 09:48:15
63.226.223.25



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 Re: Hupp Dual-Drive in reply to modyinnh, 10-17-2012 09:35:16  
Paul........most auxiliary trannys like the Hupp, were OVERDRIVE. Handy to drive on the road between fields. Overdrive top speeds were in the 25mph range but boy do those water fill ag-bar tires hop. And front tires wobble and wander all over the place. Slowing down is one of the reasons of the popularity of the 3-speed Sherman. ........Dell



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TheOldHokie

10-17-2012 09:45:28
108.8.10.15



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 Re: Hupp Dual-Drive in reply to oldtanker, 10-17-2012 09:35:16  
Quoting Removed, click Modern View to see

One use was to increase PTO speed for flat belt use. Check out the the Sherman Step-Up brochure on John's page for a typical sales pitch

TOH



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