CURT Forged Trailer Hitch Mount with 2-5/16-Inch Ball, Fits 2-1/2-Inch Receiver, 20,000 lbs, 4-In Drop Model 45372CURT Forged Trailer Hitch Mount with 2 5 16 Inch Ball, Fits 2 1 2 Inch Receiver, 20,000 lbs, 4 In Drop Model 45372 This CURT forged loaded ball mount features a gross trailer weight capacity of 20,000 lbs. and a tongue weight capacity of 2,000 lbs. It comes with a 2 5 16" trailer ball, making it an excellent choice for towing most heavy duty trailers, including large boat trailers, double axle utility trailers, deluxe campers, livestock trailers and