Kia Sportage : Noise Coming From Rear Differential Part I

In this video we check out a noise coming from the rear end of this Kia Sportage. Kia has a service TSB regarding this noise and they claim it is unrepairable and the whole $1450.00 viscous coupler unit must be replaced!! HA! This sounds like a challenge :)
Seal: 19-00-044-027
Bearing: KBC 6008Z
Copy of TSB: onedrive.live....
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