WTP-GC wrote:
I'm moreover convinced that the OP has/had a bad pinbox. As I've said before, with the design of the adapter, there's a significant a out of force against the kingpin. The flat plate underside of the pin box could not have failed in this manner unless the kingpin bent (which is confirmed by the pictures). With all that we know about how poorly trailer frames are constructed, it would not be out of the question to consider that the pin box was also poorly done.
I don't think it's a "bad" pinbox, but it =is= bad for this application, where the load is highly concentrated on just a few square inches instead of over a much larger area with a conventional FW hitch. I think it's something that Andersen really needs to address, given that the OP has seen similar deforming on a MorRyde hitch. Also, we're talking about an LCI component which I think many of us would agree is marginally built from the get-go, even for a standard hitch.
Lyle