Shimano Dura Ace Freewheel body repair or replacement.

[F45]

I have a DA 9000 hub and the freehub sounded funny. I wanted to take it apart and lube it, but also check it out.

I noticed that the cup has four slots for a tool. So I go to the hardware store and get a socket, 13/16" I think, that fit just perfectly in there. Then I ground it down until it had four teeth that fit perfectly in the slots. I secured the freehub, googled which way to turn it, got my 18" breaker bar, leaned on it, and shattered the cup.

The hub has an ultegra freehub on it now.