Can Am CV Joint
I'm about to put a replacement inner cv joint back on to my 04" Outlander as well.
Yes, you can remove the shaft or just leave it, it won't hurt anything or cost you extra money to just keep it in 2-wheel drive and ride around.
As far as the cv joint messing up, it's just a bad design. The newer models 06" and on seem to be longer and offer more spline so the bearings etc. don't slip out. If you broke the outer cv joint your lucky, Ebay has them for $35.00, otherwise if you broke the inner like me your looking at $230.00.\
I was ready to post and ask anyone if they have taken the outer bearing cv joint parts and used them on the inner cv joint "bearings and cage", since their half the price. They look the same but in the picture there's some type of ring holding the bearing cage in place on the outer cv joint.
Sorry I didn't mean to sponge off your post