Knocking Rear Sprocket?? with video

Good evening folks.

I'm in need of some advive.
I was cleaning and lubing my chain this afternoon and noticed a knocking noise.

I have a 2009 SD with 3000km on the clock. I checked that the carrier bolts were tight and that the rear axle bolt was torqued up correctly but still have the noise. It seems as though the sprocket carrier is moving slightly and causing the noise? I recorded the noise with my phone to see what people think. Does it seem normal?

If you turn up the sound and look at the clip you can hear what I'm talking about.

Thanks in advance for looking.

I think you already know what you need to do next ...

Nope. Can you tighten the sprocket carrier?

Check
sprocket bolts are all tight
bearings in sprocket carrier
rubbers in wheel that sprocket carrier slots into

Thanks Klinck.

Definitely a "back wheel out" job. Bugger.

If the bolts are lose.......Lock tight the bolts.......look at archives to see what happens......if you dont

Yeah, I'd seen some old posts and saw the damage a loose bolt can do. I checked those first but they were all tight.
Thanks

That's a normal click from the cush drive.

Make sure all your bolts are to spec...then....remove the rear wheel...pull the sproket carrier from the wheel...apply wheel bearing greese to both the studs that fit into the cush drive and the mating holes of the cush drive....reinstall..noise will be gone or changed big time. Repete every 3K miles. Been there, done that.

Thanks for the advice folks. I pulled the wheel off to inspect last night. It looks like the whole sprocket carrier rattles towards and away from the wheel by about 2-3mm. Does this sound normal to anyone who has removed their rear wheel?

Thanks for all the advice! Yep turns out everything is normal so the brains trust is correct again