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Old 12-31-2018, 10:10 PM
OneStopRestoration OneStopRestoration is offline
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Default Tach Harness and housing assembly part number

On other 66s I have seen GM included an assembly part number that relates to the tach being a 5000, 5500 or even 6000rpm redline tach. The number shown here on my original tach corresponds to l78 required 6000 redline.
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