Re: Tractor vet,, I have a question.

Posted by ChadS on April 25, 2005 at 09:56:09 from (66.228.96.142):

In Reply to: Re: Tractor vet,, I have a question. posted by RustyFarmall on April 25, 2005 at 07:57:27:

Well, I found out the H ring and pinion is 12/49=4.08 gear ratio. The W4, or O4 gears are 18/50=2.77 ratio, which is quite a jump in speed in my opinion. It speeds it up like 1.34 or something like that,,, Im running 15.5x38 on 16 inch rims, so they are not a real tall tire, maybe bout the same height, maybe a bit taller than a 12.4X38. So, with the ratio #'s, mite help me convert the book ground speeds to the conversion for the W4 ring and pinion. The reason Im doing this swap is that my engine, is tearing up 4th gear when Im pulling the tractor in antique classes, it simply kicks it out of 4th, and tears up the slider, and the drive gear. Its a very small gear, and I want to put the HP to a bigger, 2nd, and 3rd gear. 2nd, being my power gear, and 3rd being my speed gear during a pull. Chad

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