Buyers Products 5613100 Gooseneck Flip Ball Hitch for GM 2001-2010 Fits GM 2001-2010 2500HD Long/Short Bed (1 Crossmember) and GM 2007-2010 3500 Long/Short Bed (1 Crossmember) Fifth wheel type hitch adds more towing capacity and maneuverability than a traditional bumper hitch. 2-5/16 in. hitch ball can be flipped for unobstructed bed use (requires 4 in. hole in bed for flip ball) Underbed design with a 30,000 lbs. Maximum Gross Trailer Weight Powder-coated finish is long lasting and corrosion-resistant.