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Mod | | | Forums66 Topics128,069 Posts1,055,886 Members48,428 | | 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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#90535 09/04/2004 10:37 PM | Joined: Apr 2004 Posts: 31 Junior Member | | Junior Member Joined: Apr 2004 Posts: 31 | ...the speedometer...
Hey' bolters... finally got around to installing my new dash board into the '65 GMC... went for Autometer antique-looking guages... Volts read 14.3, temp reads 200 degrees, cooling fan on, 180 degrees off, oil pressure reads 25 to 40 psi depending on engine speed... Fuel guage I couldn't get to yet, but not concerned right now...
However... the speedometer reads nearly 15 mph off... Vehicle speeds is say 50 actual and indicated speed is, maybe 35... This I would like to correct somehow... I have no idea on how accurate the OEM was, it was trashed before I got it....
Any ideas?
Any help, as usual, greatly appreciated...
Thanks, Pete
Pete in NE PA
1964 Cheverolet Carryall
1965 GMC 1/2 ton
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