Load your truck up like your going camping and drive to the scales. Don't forget a full tank of gas. Next look on the drivers door post and get the manufacturers GVWR. Subtract A from B. that is how much room you have left over for tongue weight. Using your VIN Ford should be able to give you the trucks GCWR. Again subtract your scaled weight from this number. That is how much you can safely tow without exceeding the manufacturers specifications for the entire package. As for trailers, and since you do not already own one look on the trailers left front corner. There you will find a tag that will give you all sorts,of useful information including the trailers GVWR. As long as that number is below your trucks towing capacity your good to go. While you may never hit the trailers GVWR guaranteed you will also never see the brochures dry weight number either. Better to error on the safe side than to wind up grossly overloaded.
