The leading cause of tow system failure is towing out of level. Use the appropriate size drop to level out your towing system. The drop can be turned up or down to either lower or raise the hitch height by 2". The 072 has a 6,000 lb. GVWR and a maximum 200-pound tongue weight capacity. For a 2" drop or riser with a 10,000 lb. capacity and 400 lb. tongue weight rating, see Roadmaster's part number 048-2