Gear ratio identifying
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Senior User
Joined: Aug 2012
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From: Corbin, Ky
Gear ratio identifying
Hello all,
I am trying to come up with gear ratio out of my 9 inch Rearend. I have counted 35 teeth on the ring gear and 10 teeth on the pinion gear. There is a number 4210 stamped on the gear but I'm thinking that's not the ratio. Any help is appreciated as always!
Jon Preston
I am trying to come up with gear ratio out of my 9 inch Rearend. I have counted 35 teeth on the ring gear and 10 teeth on the pinion gear. There is a number 4210 stamped on the gear but I'm thinking that's not the ratio. Any help is appreciated as always!
Jon Preston
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Joined: Dec 2004
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From: San Jose, CA
Here's a good discussion on counting rear axle ratios: calculate rear axle ratio [Archive] - For A Bodies Only Mopar Forum
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Senior User
Joined: Aug 2012
Posts: 227
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From: Corbin, Ky
Hello, I went out and turned my yoke and watched a mark that I had mad in the ring gear. The yoke turns 3.5 times to make one revolution of the ring gear. So I'm assuming with the counted teeth and the turning of the yoke that the Rearend is a 3.50. Thank you all.
Jon Preston
Jon Preston
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