Anyone rebuilt the rear hub on the '09 Peace 9r?

I experience that the freehub body on my rear hub is in desperate need for some TLC after a winter on salty roads. The bearings have held up pretty good (looks like Enduro ones). How do I remove the freehub body? Do I need to knock out the axle? If so, is there any useful trick to reassemble it?

Any pointers to how to do it, or actual brand/make/model of the hub is helpful.