Pelican IMS Upgrade failing?

[truegearhead]

Three years ago with around 80,000 miles on the clock I replaced my IMS bearing with a Pelican upgraded bearing. The bearing I pulled out was perfect and the new one installed relatively easily. A few weeks ago(and 30,000 miles later) I started to get a rattle on start up (not a chain rattle), it also got a little reluctant to start requiring a few more spins. Now it has developed a throw out bearing-esk noise that started this morning and has very quickly developed into something down right scary. It's definitely a bearing of some sort that's failing. I'm not sure if I would have heard it but I don't have the insulation in my car so I can easily hear anything that is going on back there. You can also now hear it from outside the car. I'm getting it towed in tomorrow morning, what should I do once its there? Go ahead and replace it again? Or are there any tell tail signs that I can count on?