Just Getting Started

[Hozer 88GTConv]

The aforementioned link looks good...

Since you're keeping your stang, get a shop manual. Not a Chilton's or Haynes, a Ford Shop manual. They come in a letter series for our models.

The bolts are 13mm, if I remember correctly.
I pulled the negative lead off the battery, jacked the rear end up at the pumpkin, removed the 3 screws at the filler neck, 7/16ths ?, used a 1/2" pneumatic wrench, 12" extension, and a deep 14mm socket for the strap bolts.
Hopefully, you got only a gallon or two in the tank, otherwise it'll be a little awkward. I'd recommend having a friend help you.
Lower it carefully, you don't want to break any lines/fittings as you lower it.

The fuel pump module is on the passenger side of the tank, the fuel level indicator is in the center. Use a brass punch and synthetic mallet to remove the lock ring on the fuel pump, replace the gasket and pump, you'll have to reconnect two electrical wires to the new pump, put the new filter on too, it's a pita but make sure it's seated correctly.
For your application a 195lph pump will be adequate.

Change the fuel filter while you are at it. It's right there attached to the underside of the body just forward of the tank.