Re: wire for the gas sending unit?
You do not need a fuse on this line as it is only a ground wire. It goes to the tank sending unit which is a resistor to ground (works just like the dimmer on your light switch). The pink wire that feeds the other side of gauge is a fused wire. The plug in on fuse box is just a handy place to unplug the wire to tank.
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56 Chevy Bel-Air 2dr. HT (purchased new)
71 Chevy Cheyenne SWB PU (502HO)
65 GMC short bed step--work in progress and my gofer
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