That is not good.

It looks like your carrier bearing has seized, and is spinning in the carrier. It is difficult to tell how easy it is to turn, or how much of the alloy carrier has worn away from the video.

I would start with a new carrier bearing (6304-2RS) and hope it sits firmly inside the carrier. If the new bearing doesn't sit firm then you are looking a at new carrier - depending how much slack is in the assembly.

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