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Old 05-15-2022, 11:20 PM   #1
CSTGURU
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Identifying a 6cyl and 8 cyl factory original Tachometer

I recently aquired 2 original Tach Dashes for 67-72 trucks. One tach is clearly stamped 8CYL on the back, but the other has no markings visible anymore. Is there another way to ID them? perhaps internals? appeciate the input, thanks.
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Old 05-16-2022, 06:43 AM   #2
68panelman
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Re: Identifying a 6cyl and 8 cyl factory original Tachometer

It's been awhile since seeing the back of a six tach, but I'm nearly certain the tin is stamped as well, at least on a V-6 GMC truck I once had. The printed circuit is also is marked.
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