96 2.3 XLT fuel return line rusting

[NewRangerGuy]

This is what I got told by the fella that just replaced my exhaust for me. I also heard the words "vapour return" and I am under the impression that there is raw fuel being sent back to the tank and not 'vapour.'

So now I am confused and I am wondering what he was on about. If he was saying the return line is rusting then I have something to worry about.

So... anyone have refernce pics or advice? I am wanting to change this thing myself but I worry that I will have to remove the bed to access the tank and lines.

Thanks,

John