Edelbrock water pump rebuild

Anybody ever have a Edelbrock water pump rebuilt? I've got just a tiny seepage out the bearing vent hole, and since my motor is out I want to fix it now. It has worked well for a long time, and it's a polished unit so I'd like to rebuild it.

Update, I found out Edelbrock rebuilds them in house, It's $75, and return shipping is included in that price, not a bad deal at all.