[fwayne]

Yes, I did it myself on my 70. I'm assuming you are needing this for fuel injection.
I used a replacement in-tank pump. mine was from amazon part number GSS342 . I took out the original sending unit, cut off and flared the pickup tube and clamped the Walbro pump onto the tube. You will need to pass the electrical connection through the sending unit, and if your system requires a return line you'll need to plumb on back to the tank as well. It works great, you can hear it though. I moving to a rear mounted tank and moving this setup to that to get the whole thing out of the cab. I don't like having pressurized fuel lines inside the truck.