IH 3500 RPM Gears November 02, 2023 02:42AM
What gear ratios and ring & pinion is everyone running in the Pro Field 466 3500 RPM class with 20.8's. I have the 13/51 with a 1066.

Thanks
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Re: IH 3500 RPM Gears November 02, 2023 04:26AM
Depending on the track anywhere from 22:1 to 19:1 and in between.
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Re: IH 3500 RPM Gears November 02, 2023 04:35AM
[i one under, one and two over would be the ideal transmission, road gear on tough tracks, one over on looser tracks, two over when you go pick on the farm stock tractors and one under when you’re in Shipshewana[/i]
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Re: IH 3500 RPM Gears November 02, 2023 05:42AM
Right now I have a transmission with direct 1-3 over. What ring & pinion would you recommend with it? Or would you still recommend 1 under?.
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Re: IH 3500 RPM Gears November 02, 2023 05:54AM
Run a 12/49 with that then. That will give you 22:1 21:1 20:1 19:1
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Re: IH 3500 RPM Gears November 02, 2023 07:30AM
Caleb- If you decide to go with a 12/49, I have a good one on the shelf that is available. Let me know if interested.
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Re: IH 3500 RPM Gears November 02, 2023 02:07PM
Direct with a 706 13/49 R&P (21.2 : 1) will win you a lot of pulls if you have everything else right in an 1070-1150 hp class. Tires have a lot to do with it also for the gears. Taller tires and more tread depth = slower gear than short and less tread.
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Re: IH 3500 RPM Gears November 03, 2023 01:14AM
Thank you all. If I keep my transmission setup that I have what ring & pinion would be the best out of the 3 to use. From what I looked up the 706 would give me 21,20,19,18. With the one I have now would be 22, 21, 20,19. If I go with the 12/49 it would be 23, 22, 21, 20. We plan on hooking some in the PPL profarm class.
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Re: IH 3500 RPM Gears November 03, 2023 01:20AM
You are wrong Caleb, The 12/49 will give you 22, 21, 20, 19 you are correct on the 13/49. A 13/51 will split the difference in them
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Re: IH 3500 RPM Gears November 03, 2023 03:26AM
Quote
Oly
You are wrong Caleb, The 12/49 will give you 22, 21, 20, 19 you are correct on the 13/49. A 13/51 will split the difference in them

OMG Oly!!! You are getting too technical!! Splitting hairs!!! Er um gears!! LOL
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Re: IH 3500 RPM Gears November 03, 2023 06:30AM
Sorry I responded on the wrong thread. Well from what I looked up direct with a 12/49 is 23 to 1 and the 13/51 is 22 to 1. Anyone else have anything else on this. I don't have a problem switching ring & pinions just want to put in the one thats most common for this class.
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Re: IH 3500 RPM Gears November 03, 2023 08:32AM
12/49 rp with all over is a good setup, if you needed 1 under still then throw off some weight
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Re: IH 3500 RPM Gears November 04, 2023 02:19PM
12/49 is 23-1 direct, well technically 22.929, close enough to 23 for me anyway but I digress. It also would be an ok choice to use with your transmission if you don’t plan to change the ratios in it.
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Re: IH 3500 RPM Gears November 08, 2023 07:56AM
Dairy Blend, just curious how much weight needs to be dropped to make this work? 200 lbs? more? less?
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Re: IH 3500 RPM Gears November 22, 2023 08:11AM
500ish pounds, also can air tires up a little harder or drop the hitch an inch (only do that as a last resort). It's all something you will have to learn and play with depending on your particular tractor set up
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