75' Rear end message lost?

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  • jeff chester

    #1

    75' Rear end message lost?

    I searched and searched...The code AZ on a 75' rear end..
  • Bill Baird

    #2
    Re: 75' Rear end message lost?

    The NCRS 1968-1982 Corvette Specification Guide does not list a differential code of AZ for a '75 Corvette.

    The only AZ I can find mentioned in that guide comes from 68-69 with a 3.55:1 ratio, positraction, and heavy duty for use with a 427.

    Bill Baird

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