I run Bridgestone W965 Blizzaks on my 2006 Chevy 2500HD, Diesel truck in the winter time. They stop real well on packed snow and ice and get great traction. Not tried them in a real deep snow, but I can imagine they would do about as good as any snow and ice tire out there.
After I discovered that all season tires where useless on my 2500HD in the winter, I bought the Blizzaks and mounted them on an extra set of wheels that I bought from a guy. I run Michelin tires in the summer and switch out around October or so each year.
I have found out that these heavy Diesel 4X4 trucks are so much heavier than the Tacoma's, Colorado's and 1/2 ton trucks, they don't go as good in the mud and snow in my opinion.
