Mechanical to electronic speedometer
08-02-2004, 11:32 PM
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Car: 1985 Trans Am
Engine: Chevrolet 355
Transmission: Borg Warner W.C. manual cog
Axle/Gears: B W 9-bolt 3.45 Limited Slip
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?
08-03-2004, 10:32 AM
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Car: 85 T/A
Engine: 350 TPI
Transmission: T5
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.
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