Hi

I was wondering how often I should change the "Prop Shaft Strut Bushing" in the boat.
Mine was already worn out after only 25 runs or so - is this normally?

And then I have a problem with the new "Prop Shaft Strut Bushing" that i anstalled; when i run the boat, the "Prop Shaft Strut Bushing" keeps spinning. When I installed it, I just took out the old one and put in a new one. Should I apply some glue, when iinstall it?