just to add to the LT vs ST tire debate.. a LOT of airstream owners on the airforums.com boards have switched from a 15" to 16" rim and most are going with the Michelin LT tire.. 225/70-16 most of the time i believe. there are other LT tires like the BF Goodrich, which is supposed to be made in the same michelin plant in SC just a different mold but same carcass.
Of the ones that have switched there has been virtually NO more tire issues..
do the LT tires cost more than the chinese ST or any ST tires.. YES.. Are they a better tire no matter what the ST tire lobbyist try to tell you, YES,, but what is your family's safety worth.. PRICELESS..