CURT hitch adapters can be used for many different purposes when hitching up a trailer. Whether a ball mount shank is too small or too large to fit into a receiver tube, a CURT adapter can make up the difference. Our adapters are built with exceptional strength and designed to be precisely fitted for their application. We carry trailer hitch adapters to accommodate both receiver tube openings and shanks of 1-1/4 in., 2 in. and 2-1/2 in. dimensions. CURT adapters also come in various lengths to allow more clearance for a cargo carrier, bike rake or spare tire. This specialized CURT receiver adapter converts a 2-1/2 in. x 2-1/2 in. receiver tube opening to a 2 in. x 2 in. opening. It offers a gross trailer weight capacity of 4,500 lbs. and a tongue weight capacity of 450 lbs., and when combined with a weight distribution hitch, it offers 6,000 lbs. GTW and 600 lbs. TW. It also has the option to be cut down from its 34 in. length to 24 in., increasing its weight carrying capacity to 6,000 lbs. and its tongue weight to 600 lbs. When combined with a weight distribution hitch, the 24 in. length maxes out at 8,000 lbs. GTW and 800 lbs. TW. This hitch adapter also comes with integrated safety chain loops and an electrical bracket.