Jeffy3 wrote:
While replacing the flapper valve in our American Standard toilet
(probably 20 something years old) the overflow tube broke right off at
the bottom. It appears that it was screwed in but that the threaded
end is still stuck in the bottom. Any advise on what to do? It would
seem that if I could just get the threaded piece out I could get a new
overflow tube and screw it in. Thanks in advance.

I notice you've already fixed it, but I'll answer anyway!
You can usually get hold of the threaded stub with needlenose pliers or
even tweezers, and it's so thin you can just kind of fold it inwards
from the threads to remove it. Sears Hardware sells replacement thread
overflow tubes, both brass (one size only) and plastic (with two sizes
of threads on the different ends). I replaced mine very easily, and
never could get it to stop leaking after that!