I get your point. If it moves, something would seem to have rounded out inside. I'm scratching my head on how they'll get the old strut out, without essentially removing the interior housing anyway. I know there are after market manufacturers of p-struts, but I've never need to use one (hoping it stays that way). Your boat must be going on 40 years old, as I don't think they've been made, since the early 80s. There may be some logic that says, if it hasn't dezincified yet........? Hard to say.