Worth exactly what you are paying for it. I have a 2013 Ram 1500. I have a sticker payload of 1437#. I tow a 5000# HTT gross weight. According to Ram my Vin# is good to 8500#. I would not want to tow that much. Maybe 6000 or a couple hundred more would be ok,but no more than that. I know that loaded I am over payload by 200# or so,but it does not have any negative affect.in handling.
The only mods I have done is to go with the smaller 17" rims and load range "D" lt tires. Hooked just on the ball I have about 3" of sag which is removed with my wdh.