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Old 06-07-2020, 04:51 PM   #106
randy500
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Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
Re: 72 GMC K2500, short bed build

Finally got my tach situation sorted out. I bought a tach cluster here off the board and one off eBay, both dead. I ordered a new circuit board off eBay, Cajun tach shop. I couldn’t make it work despite trying the board in both tachs. I sent Cajun tach shop an email, he said ship the tachs and he would look them over. He got them both working. Apparently on my last install I put the board in backwards, I guess clearance inside is real tight and some part of the board was touching the metal housing too. Anyway he fixed the both for the cost of the boards and about $50 or so of labor. I’m real happy and they both respond to rpm better than most. I find most factory are very lazy.
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Last edited by randy500; 06-07-2020 at 04:59 PM.
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