Take both clamps off and slide the boot down the shaft. Use a cleaner to remove old grease and wipe out. Slide the boot back on and clamp.
I've been wondering if you can remove the C-clip, compress the axle and remove it without pulling the knuckle... That would allow a semi-rebuild without pulling major components...I still need to swap CV's and this may be the time to experiment. Thoughts? The CV can compress quite a bit, maybe just enough to slide the cage/bearings out. Of course shock unbolted, wheel cranked, and lifted off the ground.
Nick - not gonna happen. You will spend more time trying then just breaking things down.