If you're looking for a class III receiver hitch for that new boat or skid steer trailer, then you are in luck. RealTruck.com carries a big selection of class III trailer hitches. They are designed to compliment a 2" ball mount and are ideal for full sized trucks as well as suvs.
We also carry a class III receiver hitch for RVs. These hitches are made to withstand GTW weights up to 6,000 lbs. The TW is rated between 350-600 lbs. With the extensive weight limits you will have no problem hauling that new boat to the lake.