It is 4°F on the other side of the window behind my monitor right now, but that's okay, because it's supposed to be a balmy 6 or 7° by the time I have to brush the car off and head to work.
I hope I can get one more winter out of the Subie. I'm not sure it's worth replacing the viscous coupling if I have to pay a Subaru dealership to replace the whole center diff. But as it is, it eats wheel bearings and those are $600ish a pop.
As long as it can limp the mile and a half to and from the shop on snowy/icy days...