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Old 08-15-2011, 08:03 AM
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72 chevelle tach install

My 72 chevelle has the SS gage cluster but without the factory Tach. has anyone bought and installed a OPG Chevelle tach in the right-most gage position where the clock normally goes. I don't want to get the new mylar circuit layer on the rear of dash assy. What problem would I have doing this ?

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Old 08-15-2011, 12:05 PM
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Old 08-16-2011, 05:26 AM
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If you dont have the factory tach, you are also missing a couple of the other small gauges as well as the gas gauge is one of the small gauges on those.......You are going to need the proper circuit board....and maybe harness
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Old 08-16-2011, 07:45 AM
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Your correct I don't have the smaller gages. I don't want to go to the trouble replacing all those gages. I was wanting to leave the large gas gage in the left most position and just install the tach in the right-most position and hard wire the necessary wiring to the distributor.
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Old 08-21-2011, 08:56 PM
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not sure you can get a gauge that matches as a stand alone, but i did a similar install on a 73 c-10, I cut the housing to accept the gauge and rolled the circuit back on itself and carefully tied it in place with zip tie. not the cleanest looking setup from the back, but when installed it looked fine, other then the gauges did not match. i never got to it, but i was going to then tap into the light circuit for the new gauges.
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