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Thread: Rear End Size for 72 Nova

  1. #1
    Member JUNIOR BUILDER
    Join Date
    Aug 2007
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    Bedford, Ohio
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    86

    Rear End Size for 72 Nova

    I need to get a posi unit for my 72 Nova, but I don't want to have to change the case. It has 10 bolt on the rear pan, is that an 8.5 or 7.5? And can I get an auburn unit kit for it?
    Help?

  2. #2
    Senior Member MASTER BUILDER
    Join Date
    May 2003
    Location
    Owingsville, Ky
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    157

    Nova rear end

    That would be neither the 7.5" or the 8.5". It would be the 8.2" diameter ring and pinion.

    I am not sure about the Auburn units, though.


    Bill Mitchell

  3. #3
    Senior Member RACING JUNKIE
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    Feb 2004
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    san antonio, texas
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    1,233
    my nova was a 10 bolt 8.5" ring went with auburn pro-series
    28 spline posi, takes all my 383 will give, with kick a$$ axels
    from www.tomsdiferentials.com

  4. #4
    Member JUNIOR BUILDER
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    That's not a good website address, but thanks. There is a crate rearend place on the web I'll search for (currie I think).
    Hoping that I can use the case for a 8.5 posi unit. How can I tell?

  5. #5
    Senior Member RACING JUNKIE
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    http://www.tomsdifferentials.com/

    http://www.tomsdifferentials.com/tomp.htm

    he had the right address he just mispelled it. Happens to everyone now and then.

  6. #6
    Senior Member RACING JUNKIE
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    Feb 2004
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    san antonio, texas
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    thanx for the correction tod, i will blame the computer ha.
    tom's has all you need to change a 10 bolt in to a heavy
    monster. the good rebuildable 10 bolts have ears on the bottom,
    if they don't go with a 12 bolt if you have to replace it, i am
    going to have my 10 bolt for sale in a month, going with
    a shorten rear with a spool the 10 bolt has 3:73 US gears
    good luck :wink:


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