I had occasion to talk to Keystone customer service a few days ago on another subject but asked about the axle ratings. The lady said that she had not heard anything obout axle recalls or concerns BUT did say that there was a meeting she attended recently where the axle rating issue was talked about. She said that the information that was passed at the meeting about axle weight ratings stated that people forget to account for the weight carried by the hitch and that the 6K rating on our unit was adequate at the least.
Made sense to me anyway. I can't say that I had any concerns anyway.