Oh also from Lee last night:
So I was not able to find a torque spec for the torque coupling. The 150 lb-ft max thing seems to be spread around by EcoBrick Bob on SHO forums based on his own testing and assumptions. But I agree that number sound plausible based on the size of the unit and how the torque bias is set up on the AWD system. Stock torque is 350 lb-ft, and I think the driveline loss is about 20-25%, so that means at 50/50 split the rear would get about 130-140 lb-ft. The clutches can only hold so tight, so above that threshold they will start to slip (which actually would be desirable to mitigate axle wind-up). It's possible the max torque may be slightly higher (like 175 lb-ft), but that would be wasteful over-engineering after that point (remember the engineers don't design for how much power tuners might make with cars).
The unit for 2013+ may be revised in some fashion, perhaps with greater torque capacity.
