rcv

So I've been building out this TJ 44 front axle. Got these RCV 30 spline axle shafts and i noticed some rubbing on the knuckle (teraflex knuckles) where the wheel bearing bolts go and on the passenger side lower C as seen in the picture. now the knuckle i can maybe shave just a bit off the edges...

Ugh... One of my orange CV boots on my RCV axle keeps popping off. I get it on all the way (I think I do at least) and then I go driving and it pops off. What exactly holds these boots in place? Just the pressure alone? This shouldn't be as hard as I'm making it out to be, but I'm stumped as...