Originally Posted by
Crankycrank
I would agree with post #2 that you need to find out what is wrong with your freehub or give us some symptoms of the problem. It may be an easy fix instead of a replacement.
Indeed, if it fails to take up drive, or it drags, it might just need a squirt of solvent, but if it's seized there's likely to be a more substantial problem. I guess this is why we shouldn't answer an OP's question, but instead ask them why they're asking it.