Third Generation F-Body Message Boards - Mechanical to electronic speedometer

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catc	08-02-2004 11:32 PM

Mechanical to electronic speedometer

Is it possible to switch from a mechanical speedometer(85 Trans AM) to an electric type from an (88 GTA) without replacing the entire dash wiring harness?

dd85T/A

08-03-2004 10:32 AM

Yes. I swapped mine in my 85 to a 87 or 88. You will need to repin the connectors or cut and splice the traces on the flex board. I did the cut and splice. You will need an electric sender and a buffer box. Don't forget to connect the signal to the ECM.

Petes 84Z28

08-03-2004 12:14 PM

http://www.hioutput.com/tech/speedo.html

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