Thanks all.
The other posts were in more detail but I think I got the most of it and a picture tells more. I also serviced and changed the rear pads. They are a little more tricky but not much if you do it carefully.
Just for others info
Rear callipers bolts are 40Nm and Retaining pins are 18Nm Watch the anti rattle spring a bit fiddly note how it comes out but on the whole pretty obvious.
seadog