Freehub (from open end) is bearing, spacer, circlip, bearing. Both 6001 types (2RS as standard)
Hub body is same bearings (so you need four in all, ebay is a good place, can get them cheap and also SKF though mine had INA in them for not too much.
Getting them out can be easy, they just pop out with a few taps, or a right royal pain in the backside as mine was last week.
Take the end caps of each side, they just pull off or use an allen key grub screw.
Then pull the freehub body a little, you may need to help it from behind with a screw driver to leaver it.
Freehub body, from the closed and, you need to tap them out (called drifting) but you need to tap the end one out first, then remove a circlip then take get the tother one out.
Placing it on a radiator helped me here and plenty of WD40 during to keep it slippery.
Hub bearings, place the flange none drive side between two pieces of wood or preferable a piece of wood drilled for it.
then keep bashing away at the axle from the drive side (rubber mallet so not to damage the axle) This took me the longest over 30 mins to get it out and was knackered. Sprayed WD40 in one it started to move to help it along
Other side I placed a socket set that was a good fit inside the hub, socket extension and waked it, came out easily
Now rebuilding the freehub body is easy as you only need to support the outside of the bearing when hitting them in. So a socket set works well here.
The hub body itself is a different matter, my socket sets are not perfectly flat so do not support the inner and outer race of the bearing so the bearing get slightly buggered as the inner side gets dragged along the axle you bash the bearing into the body (and so pulling the bearings n to the races) Same for both side, so mine need replacing at some point to make it silky smooth, they're a bit nothcy now, once I've made a tool (block of Alu rod with hole drilled in it for example.)
Hope that helps and I could put up some official looking instructions with diagrams of the tools and how to drift the freehub body for a XC hub but other than the shell they are identical... (of course I found these
after I had done it all
)
