CURT Straight 2 in. Square Trailer Hitch Ball Mount, 8-1/4 in. 45010
Amazon.com: OMT Trailer Hitch Ball Mount with 2.5 Ton Towing Capacity, Class 3 Tow Hitch with 1" Hole and Pins for 2" Receiver Pickups Vans SUVs, Adjustable Drop Hitch for Trailers Campers
Class III Hitch Ball Mount with 3/4 in. Ball Hole - Made in U.S.A. (UB-008-B) | eBay