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**N2TRUX** · 09-06-2008, 09:57 PM

This one looks to be a 77+ cluster. It has Volts rather than AMPS, but you said it was mechanical oil pressure. I believe that ended in 77, so it might be 77 only.

09-06-2008, 09:57 PM	#3
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,021	Re: what year tach gauges are these? Also radiator bracket help This one looks to be a 77+ cluster. It has Volts rather than AMPS, but you said it was mechanical oil pressure. I believe that ended in 77, so it might be 77 only. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra" Last edited by N2TRUX; 09-06-2008 at 09:59 PM.