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1G Verifying rear diff ?

Posted by SasaniFab, Aug 6, 2020

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  1. SasaniFab

    SasaniFab Freelancer

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    Joined Dec 1, 2013
    danbury, Connecticut
    I’m aware of the coding for the rear differentials. I recently purchased a “J1h” rear diff and I want to verify that this is in fact a 3.307 . What’s a sure fire way to check ? The pinion has 43 teeth
     

    Attached Files:

    Street Build 4K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  2. DSMPT

    DSMPT Proven Member

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    494
    Joined Jun 12, 2014
    Japan / Mexico, Arizona
    Just check both ring and pinion gear tooth count.
    You should have 13T on the pinion and yes you have 3.307.

    Ring gear tooth count divided by Pinion gear tooth count = Ratio
    43 divided by 13 = 3.307
     

    Drag Race Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    Street Build 2K  4

    1998 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
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    SasaniFab and 1990TSIAWDTALON like this.
  3. SasaniFab

    SasaniFab Freelancer

    2,453
    749
    Joined Dec 1, 2013
    danbury, Connecticut
    Thank you sir
     

    Street Build 4K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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