Not sure about snow but I just put a set of BFG Mud Terrain KM 3s on the ole 2000 Dodge diesel and I'm very impressed with this tire, very quiet, good in rain, excellent in mud and rocks and they ride very good for what they are. I would imagine they will do well in deep snow as well.
for the most part the diesel trucks suck in mud and snow, just too much weight up front, like these guys are saying, throw about 5-800 pounds in the bed and it's a different animal.
