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  1. #1 Re: HD Differential question 
    GXP Level Member Turbocharged400sbc's Avatar
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    i havent found anything dimentionally different, what i have found is that GM/others had improved the PM/sinter processs to improve the strength of helical gears that are harder to make using PM/sinter than straight tooth gears

    this is not the one i remember reading but it has much of the same info/keywords

    https://www.capstanatlantic.com/app/...ticle-2004.pdf
    ~James~ Psychotic Gearhead
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  2. #2 Re: HD Differential question 
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    So if I am understanding what you are saying is, they should fit and work fine, and they use the improved PM process for better durability?
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