I have quite a few photo's on the subject just never got round to doing the how to, but one little bit of advise make sure you have a 7mm Allen key
and use good quality 6 sided 13mm and 15mm ring spanners or sockets.
You will also need a 5o torx, some cable ties, to hold the caliper up and out of the way while changing the discs and pads clean the sliders, brake shoes and back plates while you have the rear disc drum off.
If I get time over the next few days I will try and load up the pics for you, but I am sure an how to as been done already. Arctic