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Mod | | | Forums66 Topics128,023 Posts1,055,367 Members48,420 | | 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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#92355 07/18/2005 6:16 PM | Joined: Jul 2005 Posts: 27 Junior Member | | Junior Member Joined: Jul 2005 Posts: 27 | I'm wondering does anybody know if original gmc ( 66 3/4 ton V6 305 ) temp gauge wires had resistance built in or a resistor. I just installed painless wires now my temp swings to hot as soon as it slightly warms up. Gauge checks out, I have 2 of them. cooling system is new and working great, I have 3 sending units, all new and all do the same. :confused:
I'm older than my truck but it's smarter than me! 66 GMC 3/4 ton fleetside 283, turbo 400.
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