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| | | Forums66 Topics128,183 Posts1,057,263 Members48,467 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Nov 2006 Posts: 63 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2006 Posts: 63 | Hey all so now that I got my all gauge cluster hooked up and installed I'm looking to try putting a tach in the open spot on the cluster. I would be interest in the factory Tach but I have a 235 6cyl and I know the tachs were setup for 8cyls only. So my next question...has anyone retrofitted a aftermarket tach into the cluster? If so how'd ya do it? Now I would like to find a 180 sweep tach (like the original) because I don't want to cut out the metal in the cluster. So what do you all think? or should I just get a 2" dash mounted tach? Let me know your opinons and expertise!
Thanks,as always -Danny
1960 C-10 Stepside,Longbox
235,4spd 3.90 diff.
| | | | | Joined: Jun 2005 Posts: 1,756 Shop Shark | | Shop Shark Joined: Jun 2005 Posts: 1,756 | I have a 3 1/2 inch in my dash now, From NAPA taking it out for another that matches.(dolphin) I thought all aftermarket tach's could be set up for 4-6-8 cyl. I'm certain my was when I bought it. Check it out, I;ll sell it cheap. | | | | | Joined: Nov 2006 Posts: 63 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2006 Posts: 63 | Was it a 250 degree sweep tach? Did you have to cut any metal out? In my 1960 only half of my total diameter is open (the top half)...and what modifications did you have to do? (The aftermarket Tachs are setup 4-6-and8 cyl I was talking about the original factory option tachs being only for 8cyls.) THANKS!
Thanks,as always -Danny
1960 C-10 Stepside,Longbox
235,4spd 3.90 diff.
| | | | | Joined: Sep 2006 Posts: 335 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 335 | sending units were specific between 6 and 8 cyls..check ebay | | | | | Joined: May 2007 Posts: 292 Wrench Fetcher | | Wrench Fetcher Joined: May 2007 Posts: 292 | i got a tach in my 62's dash read's 0 to 8,000RPM and it's the GMC V-6 in it. . . . i'm going to get the after market insert with full gauges oil, volt's,temp, fuel, speedo,tach. . . i think it's made by autometer. . . .
1962 GMC K3000, GMC-379 V6.
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