Please help me understand these numbers to be CORRECT. My 2004 F-150 FX4, 5.4, 3:73 has a curb weight of 6500 lbs. Sticker on driver's door post says GVWR is 7200 lbs. Net carrying capacity without passengers, fuel etc is 700 lbs???????????? Severely inhibits towing capacity??? I am looking at towing a fifth wheel trailer and all pin weights of the smallest trailers are greater than 500 lbs unloaded???