I think you need the info for your 70? If so, there a tan wire that goes from the fuel sender to the fuel gage. The fuel sender, in the tank, gets a ground from a short black wire that screws to the frame in front of the tank. The gage black wire ties to the other grounds under the dash.
Your 70 fuel gage has 3 wires on it if that's the question. Black is ground. Tan is sender. Pink is 12 volts. The 70 uses a 0 to 90 ohm sender. If you use an aftermarket gage it has to be compatable with the sender. Otherwise the fuel reading will be off.
yeah, i got an autometer gauge. it is compatible. i have power from somewhere else-all the new gauges power is routed through a block, then 2 fuses before it plugs into the fuse block. so the 12v is covered. hopefully this will work. thanks for all the wiring help john. im almost done with all new gauges-comeing from a extremely butchered original wiring. thanks nick
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