Otto,
I know its Common for failure in parts these days but I bought my water pump (216 pump) at Napa a few years ago . Works great, no leaks. I believe it had a "warranty" of sorts. But check into it. I think they are about $150 now.
If not, have it rebuilt by someone who knows what they are doing!
Keep us posted. Stay cool.
Todd


1950 Chevy 3100