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Shelby Mustang rear end question

Discussion in '1965-1970 Shelby Mustang GT350 & GT500' started by gt500dave, Mar 20, 2005.

  1. Mar 20, 2005 #1
    gt500dave

    gt500dave Member

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    My 67 GT-500 has an SPEC cast into the rear differential carrier. A friend of mine has the same car but the rearend has no SPEC, but has a correct date code and looks original to the car.

    Does anyone know whether the SPEC is supposed to be on all GT-500's or ??

    Thanks, Dave
     
    gt500dave, Mar 20, 2005
    gt500dave, Mar 20, 2005
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  2. Mar 22, 2005 #2
    NCGT500

    NCGT500 Member

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    What is a SPEC?
     
    NCGT500, Mar 22, 2005
    NCGT500, Mar 22, 2005
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  3. Mar 22, 2005 #3
    gt500dave

    gt500dave Member

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    As I understand it Shelby was the first to put a nodular rear end center section in.
    Before the N was cast into the carrier, a SPEC was cast in place of the date code.
    Use the link below, click on rear ends in the left column.


    http://www.nvsaac.com/shelbyparts/Shelby_tech_main.htm
     
    Last edited: Mar 22, 2005
    gt500dave, Mar 22, 2005
    gt500dave, Mar 22, 2005
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  4. Mar 24, 2005 #4
    NCGT500

    NCGT500 Member

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    Were cars ever shipped without the "N" cast into the car? Mine doesn't have the "N".
     
    NCGT500, Mar 24, 2005
    NCGT500, Mar 24, 2005
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  5. Mar 24, 2005 #5
    2334

    2334 Active Member

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    The embossed "N" case's were to start appearing on the 681/2 KR's and other Cobra Jet's but some foundry issue's delayed the "N" casting's being cast until the 69 model year. HTH. Frank
     
    2334, Mar 24, 2005
    2334, Mar 24, 2005
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