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Thread: C4 opti numbers

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  1. #1

    Question C4 opti numbers

    Has any one replacing there 1992 to 1994 found stamped numbers (assume part reference number) on there oem opti ?If so i wonder if Corvettes were the only ones with part numbers. If you are replacing yours with a rebuilt you would want the oem because of any revisions. Thanks

  2. #2
    Join Date
    Dec 2017


    I would consider if afm works in lower gears in the c7 to put the car in fifth gear of the automatic and see what happens.


  3. #3


    What are you talking about?

  4. #4
    Join Date
    Jul 2008
    Ontario, Calif.


    I think he replied to the wrong thread.
    2015 Stingray Z51 w/ Magnetic Ride Control & 8-speed Automatic

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