8 3/4

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    Author Topic: 8 3/4  (Read 3785 times)

    Offline 71RT_Dude

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    • I love YaBB 1G - SP1!
    8 3/4
    « on: April 28, 2002 - 06:48:19 AM »
    :-/   Does anyone know the formula for determining the gear ratio on a 8 3/4 rear end?  I remember something about counting the spline against the pinion's teeth, but I'm not sure.    I want to make sure the previous owner didn't swap out my gear.  He said I have 3.91's, but I have my doubts.
    « Last Edit: December 31, 1969 - 07:00:00 PM by 1023595200 »
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    Offline BIG MIKE

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    Re: 8 3/4
    « Reply #1 on: April 28, 2002 - 08:57:28 AM »
    you take the number of teeth on the ring gear and the number of teeth of the pinion and  divide them.
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    Offline Chryco Psycho

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    • 70 Challenger R/T SE 70 tube Chassis Cuda now sold
    Re: 8 3/4
    « Reply #2 on: April 28, 2002 - 09:32:53 AM »
    The #s should be stamped into the ring gear as well if you look close
    « Last Edit: December 31, 1969 - 07:00:00 PM by 1023595200 »
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    Challenger - You`ll wish You Hadn`t

    Offline 71RT_Dude

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    Re: 8 3/4
    « Reply #3 on: April 30, 2002 - 01:19:24 PM »
    Thanks Guys. :D
    « Last Edit: December 31, 1969 - 07:00:00 PM by 1023595200 »
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