bor none, they are the best tires I have ever owned. I am on my second set, first were on a 1/2 ton and I got over 50k on them, I currently have a set of 37x12.5x17's on my 1 ton dodge dually and they have over 20k and still look brand new. the Psenciks have them on their dodge dually as well and Mr. james is, or at least was, equally as impressed with them as I am, last I talked to him about em.
Yep. We have had several sets on our dodge 3500 and we have had great luck with them.