Many years ago my folks had a tin sided '87 Starcraft 5th wheel they purchased used. The previous owner had a GN adapter installed as well as an extended pin box. They removed both and installed a 5th wheel hitch in the truck. If you looked down the side it was easy to see the buckling of the siding from the added stress of the GN. They pulled it (with no issues on the reg hitch) for a year or two, then sold it to upgrade coaches. They let the GN adapter go with it.
Trent & Jody.
2004 DRV Mobile Suites 33RS3
2016 Ford F350 DRW Lariat 6-pack 4x4 Diesel 14K GVW