Disconnect the filler neck from the bedside. Unplug the wiring harness. Remove the driver side bolts to the frame. Loosen but don't remove the passengers side bed bolts at the frame. Grab a jackstand & lay it accross the top of the left rear tire.

You and your helper lift the driver's side of the bed up, reach down and prop the jack stand between the frame & bed.

Crawl in there and replace your fuel pump.

Sounds like from experience. I'm going to try that on the next 7 day long change.

Is this method tried before?

Yes sir. This is the only way to do them IMHO. When I worked at the dealer, could do 3 a day with this method, plus a couple tune ups.

Nice def gonna do it now. I was really worried about taking the bed off and busting a nut picking i up. That one post could be a sticky to help others that are in the same boat.

How many Jackstands did you use?

Just one. Don't remove the bolts on the passenger side, just loosen them so it will tilt.

Awesome advice! Thank you.

What's that suspension part under the jack stand, black colored?

Looks like a c-notch to me. It is a brace/support used for lowering a truck. You cut a upside down U notch in the frame for axle clearance and use that brace to prevent frame cracking.