1986 cv joint boot replacement

What is the trick to getting the inner cv joint off the axel?  I want to replace the boots before they split. I have removed everything but the cage and the part that is held on by the clip. Everything I read says they just slide off once the circlip is removed, but I can't get either side to budge. Help!

The part number from the original inner cv joint is 911 332 030 01 LOBRO 42 / 85 W Germany  

Thanks,

John