The 7 year old Maxxis tires are shot, starting to break apart in the ribs. I have had great luck with these, wondering about the New (to me anyway) Goodyear Endurance tires made in the US and seem to have good reviews. So Maxxis 8008's again or Goodyear Endurance? 2011 Jayco Eagle 321RLTS max at 14500. So E load range at least. 235/80/16.
Between those two, I'd go with the Endurance. They are a newer design allowing a much higher speed rating. While we don't need to tow more than 65 mph, it is nice the tire is capable, and implies better built.