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  1. #1

    Default 93 Speedo and Tach

    Can I use the tach and speedo from 93 on my 79.
    Thanks,
    Ed

  2. #2
    FEP Senior Member
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    Default

    I think you can. The speedometer cable connects the same way. I have a '92 cable to my '80 speedo, so I assume it can go the opposite way. Where it may get tricky on the tach is what input the '79 is sending to the tach. The 4eye cars had their tach adjustable. The aero cars I think weren't adjustable. You will probably need a v8 car and v8 aero tach to make the work together.
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  3. #3
    Moderator wraithracing's Avatar
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    Default

    Not all 4 Eye tachometers were adjustable. So did have the 4/6/8 switch, but not all.

    I honestly don't recall if the Aero cars are adjustable or not. I don't think so, I think as mentioned above the tachometer is specific to the 4 and v8 engines.

    I won't say you can't make it fit, but if you are keeping the Four Eyed dash, the Aero speedo and tach will not fit without modifications and fabrication.
    ​Trey

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  4. #4

    Default

    Thanks All,
    Just going to use speedo and keep my faded tack.

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