Speed up IH transmisson January 01, 2013 10:30AM
I have a IH 766 with stock gears and want to speed it up. Can I change the constant mesh gear or do I need more? 4th high is not fast enough
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Re: Speed up IH transmisson January 01, 2013 12:25PM
use a gas ring gear and pieon shaft from a 706 or 806 and delete the ta. fourth high will be 20% higher. requires a lot of hp to run up there good luck
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Re: Speed up IH transmisson January 01, 2013 01:46PM
You can speed up your constant mesh which will make gears 1-3 faster. You can also shove a faster gear in the transmission. Wipeout has a good gear calculator spreadsheet that helps figuring out ratios and such
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Re: Speed up IH transmisson January 01, 2013 02:16PM
Or call Carl at Atlas Tractor 763/780-9548
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Re: Speed up IH transmisson January 03, 2013 11:58AM
Anyone know the tooth counts or ratios for a gas and a diesel ?
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Re: Speed up IH transmisson January 03, 2013 12:07PM
For diesel ring gears there's a 12/49, 13/51, 13/49, (roughly 4% difference between each) and a 16/49.
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Re: Speed up IH transmisson January 05, 2013 09:18AM
And how about gas ring and pinions? Anybody know?
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Re: Speed up IH transmisson January 06, 2013 01:54PM
If I remember correctly 706, 806, and 766 gas tractors as well as all 756s have 13/49 ring and pinions.
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Re: Speed up IH transmisson January 06, 2013 02:13PM
Can't speak about the others, but not all 806's had a 13/49. Some had a 12/49.
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Re: Speed up IH transmisson January 06, 2013 11:21PM
Did the diesel 806's have the 12/49's?
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Re: Speed up IH transmisson January 07, 2013 12:54AM
Quote
farmall puller
Did the diesel 806's have the 12/49's?

It was a serial number break when the 806's changed from the 13/49 ring & pinion to the 12/49 ring & pinion. 23000 seems to be the s/n break for Farmall 806's



Edited 1 time(s). Last edit at 01/07/2013 12:56AM by Blackstack1206.
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