Problems with FCA on a new truck warranty.

Well I wouldn't expect them to worry about a differential whine since they don't seem to mind the clutch pack retainer clips failing in the 9-1/4 Corporate LSD. When they come apart they can lodge in the gearset locking it up. That could be interesting running down the interstate at speed. They may be relying on your vehicle rusting away first.

Then too, I've had excellent results with the area Mopar Rep than the selling dealer. So going up the ladder might still be beneficial.