IdaD wrote:
He means that a gooseneck adapter on a fifth wheel stresses the fifth wheel frame, which is true. Some fifth wheels are designed to handle it and some aren't. My dad has had his Nash on a gooseneck adapter for over 20 years with no issues. I like goosenecks better than fifth wheel hitches, probably just because I've used them more, but went with the Andersen because I was a bit leery about using an adapter on my somewhat larger fifth wheel.
Having a gooseneck setup on your truck won't stress anything unless you install a gooseneck adapter on your trailer (which might be fine depending on the trailer).
There has been reports of broken welds and frame failures on 5ers. with goose neck adapters. Seems to not be isolated to one particular brand. I would not trust a dealer for an answer but would speak to the RV manufacturer and get their approval before using a goose neck.