i found a 12 inch drop hitch for my truck that has a rating for 500lbs tongue weight and 5000 towing and ive pulled 8000 lbs on it and its fine... tongue weight is the amount of weight over the ball... you can buy a rapid drop hitch that you can ajust to what ever you want that has a rating for 1000lbs tongue and 10,000lbs towing....they are really nice too