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    28 or 30 spline axle

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    DonPhe82
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    28 or 30 spline axle

    Post  DonPhe82 on Fri Jun 19, 2015 6:47 pm

    Hey yall,

    i have a 1988 Chevy Caprice Classic Brougham LS and I was wondering was there a way to identify if I had a 28 or 30 spline axle w/o taking the axle out???? 88 was the year that they ran 28 and 30 spline axles, please help!!!!!
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    solo79
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    Re: 28 or 30 spline axle

    Post  solo79 on Sun Jun 21, 2015 9:49 am

    Hey, Welcome to the Forum! I'm not real sure if you can determine it without taking them out, but I'm sure someone here will chime in that may know.


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    1979 Caprice Classic Carmine Metallic 2-door 350/TH350 -under slow frame off restoration!
    1982 Pontiac Trans Am Black T-Top 327/TH350 -Knight Rider KITT replica
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    Re: 28 or 30 spline axle

    Post  GM B-Body Forum on Mon Jun 22, 2015 7:28 pm

    Welcome, do you know if you have the 7.5 or 8.5? Theres no way to determine without taking them out.


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    1979 Caprice Sport Coupe, 400hp Vortec 350, Th350, GM 8.5 w/disc brakes, 3.90 gears Detroit Truetrac, 2.5" stainless duals w/ x-pipe, Dynomax race bullets.
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    Re: 28 or 30 spline axle

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