The Bulldog Gooseneck Coupler Head # BDGN240200 is cast steel. And yes, I recommend the welding to be performed by an experienced welder. view full answer...
The Redline Gooseneck Coupler Head # 291300 includes a steel pin to secure the 2-5/16-inch hitch ball but the overall cast assembly is made of uncoated cast steel. It offers a 30K capacity. view full answer...
The Reese Above-Bed Gooseneck Trailer Hitch - 25,000 lbs, # RP58079, has a 2-5/16 inch hitch ball that is held in place with a snap ring. This design allows the hitch ball to rotate reducing binding with the gooseneck coupler. It has a nice powder coat finish to resist corrosion and the hitch ball is a durable, heat treated ball.
If you are looking for a welded option, you may be interested in the Curt 25K Gooseneck Plate for Fifth Wheel Rail item # 16055, or the Curt Spyder Gooseneck... view full answer...
You should have no problem using the Convert-A-Ball Gooseneck Coupler Adapter, # CAB-C5G, on a 1,200 mile trip as long as the gross weight of your trailer remains under 20,000 lbs and the pin weight is under 4,000 lbs. We had one customer comment that he has been using his adapter for over 20,000 miles and it is still working great.
The only note I would add to this adapter is that there will be a noticeable difference in the ride quality if you are used to towing with a fifth wheel hitch.... view full answer...