Barracuda Gas Tank Removal

Can somone tell me how to remove the tank on my '64 Barracuda? I know about undoing the strap holding the tank. How do you get to the rubber gasket type thing that seals where the filler tube goes through the floor of the car? What about the chrome pipe the tube goes through in the rear storage area? I have the factory '64 shop manual with the Barracuda supplement but it never mentions these things as they apply to the Barracuda. I thought the station wagon mght be the same but it looks like a completely different setup. Does sombody here have a '65 or '66 manual that gives more info?