How do you remove the gas filler tube ?

It's a lot easier to take the tank off the tube first, if you're in no hurry. Once the tank is loose and on it's way down a long 4X4 between the tank and car will push the tank off leaving the tube hanging from the mounting screws. I place the timber between the front corner of the tank seam and leaf spring. Working from behind the car I'll fall on my butt when the tube lets go. LOL