Why is it silent? Well greased maybe?
I think that YOU have all clues! I am curious, so if I were You,I would have that M732 assembly apart as to see what parts do I need to fit it to another M732 hub. Or rather grease that "loud" freehub,but not overgrease pawls, as sticking pawls tend to not engage properly and You (well me) look like fool when they let go while trying to put power on pedals at lights!
I think that YOU have all clues! I am curious, so if I were You,I would have that M732 assembly apart as to see what parts do I need to fit it to another M732 hub. Or rather grease that "loud" freehub,but not overgrease pawls, as sticking pawls tend to not engage properly and You (well me) look like fool when they let go while trying to put power on pedals at lights!