Is this center support bad?

[rocketman4321]

I've been chasing a possible driveline noise and slight vibration. I know I need a rear diff output seal, but is my center support/bearing bad (pic attached)? There's no noise if I rotate it slowly, and the front looks normal. The rear rubber seems detached from the collar. There's the metal collar of the mount, then a non-metallic ring, and then the rubber. If I loosen the mount, I can get the rubber to slip past the non-metal ring, and I can put a screwdriver in there. Is it supposed to connect or is this normal? I can push the shaft laterally over 1/8", but not a huge amount.

I've seen threads saying the center support needs to be pressed on. Is this so, or is there a home version of the procedure?
Thanks!