I have a 2012 1500 / 3.92 gear with LSD and tow a 21ft. everlite that weighs in fully loaded just around 7,000lbs with a tongue weight of about 700. The tow rating is around 10,000 lbs. so we're good there, but for truck payload of about 1600 we have 700 on the tongue, 600 in passengers and a tonneau cover and side rails and such so we end up around 1400 of payload. I have never had any problems, but we do sometimes put more stuff in the trailer so we have less payload in the truck.