Today we'll be reviewing part number 2085205. This is the Wallace Forge Gooseneck to Fifth Wheel Trailer Adapter. Most gooseneck trailers are designed to be towed on a gooseneck hitch ball located in the bed of the tow vehicle. This king pin and pipe assembly is designed for those who wanted to tow a gooseneck trailer with a 5th wheel hitch. This has a 4 inch outer diameter tubing up here that… see more >