My free hub body has cracked and im looking to replace it. I have discovered it uses a 14mm hex key to remove. I cannot find a freehub body for sale that matches m785.
Will a "m760-m765" body fit my "m785" hub?
This Shimano tech doc has the relevant part numbers for you.
Y3CZ98040, I think. You may want just part of it though.
It also has a handy interchangeability table, that tells me a freehub body from an M985 or M775 would work too, but might be the wrong colour.
You can look up more here.