My 7700 freehub developed a drag causing the cassette to rotate with the wheel when coasting. Not good! That was many years ago. I also went on a quest to find a replacement other than the titanium freehub. I received lots of questionable advice about things that could possibly work. Eventually I ended up buying the cheapest 7700 hub I could find on e bay and swapped out the old freehub. Probably not the answer you are looking for. I hope someone chimes in with an alternate solution.