how snug does a cv inner joint fit into diff?

if you grab the outer race of the inner cv joint of a fiesta, should you be able to feel *any* up/down play between this and the differential housing? i.e. play which is movement other than rotational?

just curious that i felt this certain degree of movement in both sides. i couldnot think of why it would need play there as the cv joints should allow all the movement necessary. there are no transmission oil leaks nor any noises.

thanks