First of all make sure the fuel pump relay is good before you go changeing the pump jack up the car and put ramp under the tires so you be safe and take the bolts out of the bands holding the tank up and take a floor jack and a small piece of wood so you do not put a hole in your tank and low it down remove the ring in the center and then take out your pump give these websites a try

You'll need to remove the gas tank. The fuel pump unit mounts into the top of the gas tank, I'd replace the filter also.