Confused July 13, 2015 02:37PM
I have a 4020 ring pinion and 4020 finals trying to figure out what my transmission gear ratios are. I have the teeth numbers but obviously not smart enough to figure out how to add them together. .please help. ..
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Re: Confused July 14, 2015 12:27AM
What are your teeth numbers?
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Re: Confused July 14, 2015 04:54AM
1st gear driver 32 driven 30
2nd driver 33 driven 26
3rd driver 34 driven 28
Constant driver 26 driven 25
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Re: Confused July 14, 2015 09:07AM
Your ratios with those numbers would be

1st gear 22.6
2nd gear 19.0
3rd gear 19.8

Are you sure on those tooth counts? Those seem like some strange numbers.
Usually the constant gears should add up to 52 teeth and the other gears should add up to 62 or 63 teeth depending on if these used profile shifted gears. Your second gear teeth add up to 59 teeth..
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