Not that I know of. But noone has yet run those power levels as a DD either (durability). The transmission seems to be self-protective (a good thing), and is more likely to go into a limp-home mode when it senses a problem. 4DR's experience at the 600 AWHP levels points to that. Remember that the latest attempt at this power level is on the engine dyno only, not with the drivetrain connected.
Now, the PTU/driveshaft/RDU would easily be suspect IMHO at those power levels. No questions yet about driveshafts, other than improper installation at the factory.