Wait, don't run away from this thread because of the title!
I have an Italian bike with Italian componentry save for the hub and cassette, which are Shimano. I currently use the Jtek Shiftmate, but, mamma mia, I want to go all Italian. But I'm unsure of something.
First, the specifics: I have a 9-speed width Dura Ace hub with the Shimano freehub body (obviously) and a 9-speed Ultegra cassette on there. I currently have in my possession, on a shelf in my shed, a Mavic Campagnolo-compatible freehub body and a Campagnolo lockring removal tool. I am about to pull the trigger on one or two Campy cassettes via online retailers.
Here's one question: I need a 10 mm hex wrench to remove the Shimano freehub body, don't I?
Here's another: Do I use the same 10 mm hex wrench to install the Campy freehub body? If not, what do I need?