Reply to "Icky Rust in Fuel Tank"

Most sending units screw in. I would drill out the pop rivits and remove the sender. You'll need to remove the rear window and trim (it's only held in by friction. Pry it out carefully with a screwdriver). Then the sender can be pulled out the window opening. When you put it back, use 6mm metric screws- the tank is already tapped. This whole thing is like brain surgery when doing it in the car. Please consider pulling the engine and trans, then the tank. You'll need to replace all of the hoses in the cooling system and fuel system, if the car's sat long enough to rust the inside of the tank. The outside of the tank needs painting, too, and the body & frame area behind the tank usually needs attention.