Cv axle

[udall24]

On my way to work I wet into reverse no clicking then put it into first there was clicking noise and so I thought it was maybe first gear so I put it into second and it was still doing it whatever happened it liked pop I was just trying to get it to base because if I got it there I could put it on a lift but something gave out the cv axle came off the diff and I was trying to put it back thogether and the flange went back and the cv joint ball bearing just started to drop it what I'm wondering is whats the best way on repairing it do the ball bearing need to be pressed or should I take the whole cv axle off and rebuild it