Greetings all. Here is a picture of my rig courtesy of google on I84 in the Columbia Gorge. I have a 99 F350 2WD with V10 engine. The tires are almost 6 years old. Currently Hankook 265/75/16E ...
I don't see a problem with the current tires rating IF you are taking care and not driving like a speed demon down the road. Just stick with a quality tire.
After all, they have been serving you well and did so on the previous truck too.