NOTICE: This thread was originally posted by anonymous. I am not taking credit for the information below.
17 mm wrench (drain plug on tank and fuel line on pump)
pliers or vice grips (hose clamps)
phillips head screw driver (cover over fuel pump under back seat & covers over hoses on tank)
10 mm socket with 3/8 rachet (fuel filler hose clasp and nuts on fuel pump)
12 mm socket with 3/8 rachet (straps that hold gas tank)
Not much to it, undo battery and drain tank. The left rear corner of the tank has a 17 mm bolt to drain it.
Pull the back seat up, there is a clip in the center and it swings forward. The four phillips head screws on the cover will get access to the fuel pump/sender.
The electrical wires have clips to remove them. There is a clamp on the return line and then remove the 6 nuts (10 mm) and pull the fuel pump out.
Remove the fuel filler and vent hoses (these were cut on the replacement tank). This will be done after the tank is dropped. The vent hose has a clamp and the filler hose has a 10 mm ring clasp. These are located on the left rear of the tank. There is also a device (vent check valve??) on the left front of the tank that a small hose will have to be removed also. These hoses, left front and rear of the tank, are hidden behind a plastic cover that has 3 phillips head screws each holding them on. The phillips screws are inside a push-plug, so when you back the screw out some just pull the plug out (with the screw).
The two straps hold the gas tank to the car. These seemed like 12 mm bolts but I used a 13 mm because I didn't have a 12 mm socket. The grime on the nut made up the 1 mm difference. The tank also has a loop in the front center that goes onto a hook on the body. When you're under the car you can see this loop/hook in the front center of the tank. This loop/hook can also be seen through the access panel under the rear seat when looking at the fuel pump.