I disassembled my spare rear axel many months ago when I found that the free hub had cracked. I eventually got round to buying a new free hub (nearly as much as a whole wheel - damn this capitalism) and now, eventually eventually getting round to re-assembling the thing. Of course that meant I had forgotten how I disassembled it. Thankfully youtube to the rescue:
Ha! In writing this HTML I've had to teach Chrome to accept the misspelling: center. Damn doublethink.