Thank you. I thought the viscous coupler was closer to the front? No?Yep, thats normal.
I've seen them weep or leak way worse than that. It's probably the differential seal but could be the viscous coupler itself (the part you see through the hole)
Thanks, getting some springy knocking from rear down low when I reverse out of drive. Thought it was the handbrake acting up but now I’m worried it’s the VC. Gonna pull the HB mech out to see if sound goes away.It can be replaced on it's own.