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9" 3.89 GEAR stamping #???? Help!!

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Old Apr 14, 2006 | 08:24 AM
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Default 9" 3.89 GEAR stamping #???? Help!!

Question for you guys.

By counting the teeth on the ring gear (42 teeth)
and on the pinion gear (11 teeth)

42/11 = 3.82 ratio right?

But......the stamping # on the pinion is: 82-0389-1
8620

So does that mean 3.89?? I am confused!
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Old Apr 14, 2006 | 10:34 AM
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Never mind....figured it out.

It is a 3.82 ratio.

the 389 stamping is not valid.
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