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Mod | | | Forums66 Topics128,037 Posts1,055,466 Members48,424 | | 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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| | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | If you are referring to a Chevrolet truck rather than a GMC truck:
There is an input post on the fuel gauge for the power-in (positive lead) lead. The other post goes to the sender.
Yes, it matters which post you put the power to - if you choose the wrong post, you'll fry the gauge.
There might be a warning tag around the input post on the fuel gauge.
The sender grounds via the tank (but, some people run a ground lead from a sender attachment bolt to a clean ground-point).
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