I recently bought a fleetwood 20N mallard travel trailer (4000lbs) and the previous owner wanted the hitch back, not the spring bars or boots, just the hitch. Not sure why but since he gave me a great deal I honored his request. So now I am in the market for a new system. I tow the trailer with a 97 dodge ram 1500 sport 5.2L. Max tongue weight 700 lbs. The trailer has a factory rated tongue weight of 500lbs I believe. I am thinking of getting a new 750lb tongue weight system or larger because I am not sure how much longer I will be using this old truck to do the pulling. Next truck will be a 3/4 ton. I sometimes just use our 2007 denali if i know we are going a along way or have hills or passes to go over. So the question is: If I buy a weight disttribution towing system that out rates my truck will it cause a problem if I keep the loads with in the standard payload limits?