http://www.agcoauto.com/content/news/p2_articleid/181
if you can open this site: it explains more about radial pull, just what happened as my tire guy told me what to do as he Diagnosed my tire problem.
just because I have never heard of the problem, guess that does not mean it did not exist.
hope to get the new tire installed today and the problem goes away.
will keep you informed of my progress.
and yes like others, I too have had problems over the years with the big "M" tires, cracks came all over the sidewalls of two sets.
but, I banked on that problem being solved when I bought the current set on my truck.