Yeah, talk to Dustin in the Phil Wood service department. He’s super helpful. I think the general rule is that if the hub is more than about 12 or 15 years old, you’d have to send it in for service because the older designs are not user serviceable. If it’s less, you might be able to service it yourself — if the parts are available.
They don’t machine all their parts in house anymore, if they ever did. They have recently been facing supply constraints for various hub components manufactured by third party suppliers.
Either way be prepared to part with $$$.
Good luck. Do keep us posted.
This was three months ago.