Tach information, what is this one? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**aotte1** · 10-03-2015, 04:28 PM

Trying to identify what tach I have? Does it need a transmitter? Searched the model number and part number without any results. They are:
o Model RD-5C; and
o Part No. 3771216

Mark's thread "Sun Tachometer Retrospective" was referenced to me by member MG. It has good information on GMC tachs. The Chevy and GMC tachs were manufactured by different manufactures per per information posted here, GMCs were made by Sun, Chevy not sure but possibly made by chevrolet or one of their subsidiary companies.

I believe this gauge cluster with tach photos below are out of a BIG truck as it has two warning red lights below the gauges that say "Over Speed" and "Tand M Lock".

Les

10-03-2015, 04:28 PM	#1
aotte1 Registered User Join Date: Oct 2013 Location: lousiville Ky Posts: 2,645	Tach information, what is this one? Trying to identify what tach I have? Does it need a transmitter? Searched the model number and part number without any results. They are: o Model RD-5C; and o Part No. 3771216 Mark's thread "Sun Tachometer Retrospective" was referenced to me by member MG. It has good information on GMC tachs. The Chevy and GMC tachs were manufactured by different manufactures per per information posted here, GMCs were made by Sun, Chevy not sure but possibly made by chevrolet or one of their subsidiary companies. I believe this gauge cluster with tach photos below are out of a BIG truck as it has two warning red lights below the gauges that say "Over Speed" and "Tand M Lock". Les Attached Images Last edited by aotte1; 10-03-2015 at 04:39 PM.

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