Mechanical to electronic speedometer
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Joined: Aug 2004
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From: Bloomington,IL
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?
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Joined: Nov 2001
Posts: 208
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From: Billerica, MA
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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Joined: Jul 1999
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From: out of my mind; be back in 5 minutes....
Car: 1989 Firebird Formula
Engine: Internal Combustion
Transmission: Completed
Axle/Gears: ones that turn.
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