Having had to replace a couple of transmissions over the years my default is to insure that the transmission oil remains at a normal temperature and that I follow the towing recommendations. How much would that Honda transmission cost to rebuild? Spending a $100 now might defer a rebuild for a long time. And change the oil more often when towing. Hopefully a full synthetic is available.
2003 F250 7.3L Powerstroke Crewcab longbed