The axle will handle it fine. The stock suspension will be near, if not bottomed out. The tires.....that's another story.
Stock, there is about 3000# on the rear tires empty. (varies with bed/cab combos)
Stock tires at 3000# each will be running at 200% rating. Not good.
I, for instance, have tires rated at 3800# each. So I would be running at 140%. Not good, but would be tolerable in a pinch.
Dually tires run at about 2500# each X 4 or 10,000#. Minus truck, 7000# to work with.