Float in Gas Tank

Hey FABO, I got a 1971 Dodge Dart Swinger and it's getting kind of tedious to drive around without knowing the amount of gas in my gas tank haha....
The fuel gauge is set up and we got it grounded and everything and the gauge still doesn't work! :mumum: My dad and I now think it is the float in the tank. Does anybody know how to fix the float to make our gas gauge work :D or do we need to replace everything?

Thanks!