Gear setup for Ih December 22, 2014 02:58AM
Im wanting to build a smoker and am thinking about putting together a 66 series IH was wondering what the best setup for gears would be to run with a 600 cid motor with a 13mm A pump and a 2.8x3 charger I have seen some different setups as far as gears go but don't know which way I would want to go and also what does it all take to needle the rear end and such thanks for any info
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Re: Gear setup for Ih December 22, 2014 03:56AM
Several factors influence gear setup such as: weight, type of tracks, cooler or no cooler, rpm limit, tires, ring and pinion and so on. There is no real blanket answer without all the information you can provide. If you have a friend who runs in the class you are looking to build for you can probably get a good idea what you will need to start with for gear ratios. As far as needling the differential you will have to pull it out and send it off to be machined for side gear bearings, not a big deal anymore but very necessary. If you need any more help or info, I'd be glad to help you figure it all out. You can message me on here or call 660 four eight three 0458
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Re: Gear setup for Ih December 22, 2014 04:34AM
It would run in a 8 and 9 thousand pound class no ice or water and they run 20.8x38 tire size a lot of guys run a 1566 ring and pinion that run the class with a TA
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Re: Gear setup for Ih December 22, 2014 04:45AM
U mean 706 ring and pinion 13/49 if so set it up 1 and 2 over direct and if that ain't enough speed up UR constant mesh
That 1566/1586 ring and pinion is way way too fast for UR set up
Hope this helps Smiling
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Re: Gear setup for Ih December 22, 2014 04:55AM
They must b running 1566 ring and pinion with 1 and 2 under road .
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Re: Gear setup for Ih December 22, 2014 05:48AM
You can use any ring and pinion and end up with the same ratio's, just depends on how you want to go about it. Personally I wouldn't use the 15 r&p method, the 13/49 or 13/51 is what I would recommend. Talk to some of the guys in the class and they'll tell you at least approximately what they are running and go from there.
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Re: Gear setup for Ih December 22, 2014 01:20PM
I think you mean 1586 TA with a smaller drop to the low side of torque
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