Wiring help

[Law Dog 425]

Hello everyone,

I have a '69 C-10 that I have been restoring and I have a wiring question. I bought a "universal" wiring harness which was a big mistake in itself. When I went to wire up the after market fuel tank, it had the ground and only one wire for the fuel sending unit. There was also only one "fuel gauge" wire in the kit. Based on the dash wiring schematic from Chevy, there is a fuel gauge (tan) wire and a fuel gauge feeder (pink) wire. Which one, or both do I hook up to the fuel sending unit? Thanks so much for any assistance that you can give me.