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Old 11-30-2009, 02:16 PM
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Aftermarket Speedometer

1990 Chevy Short Bed
350 block
327 crank
Edelbrock 600 cfm carb
Edelbrock performer Intake
5 speed manual tranny

I no longer have the OEM gauge cluster. I am having trouble trying to figure out how the speedometer registers speed.

I was told that the electrical connections (2) Transmit the speed to the speedometer.

It all comes down to Mechanical or electrical. And which one would be the most practical.

Were do I connect the speedometer?

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Old 11-30-2009, 03:18 PM
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IF your 5 speed has a mechanical drive output for the speedometer ... I would buy a mechanical speedometer. I much prefer them to electrical gizmo speedometers. That said ... I am old school enough to KNOW HOW to make a cable drive speedometer rear correctly.

A lot of the newer transmissions are equipped with a electrical sensor for the speedometer. Most aftermarket speedometers can be calibrated to work with the OEM senders. If not ... most of the speedometer makers offer ( for additional CO$T ) a sensor that will work.

I have a old school mechanical cable driven Stewart Warner speedometer in my 32 Roadster ... and a electric gizmo Autometer in my 32 3W coupe. I like the SW better ... a LOT better.
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