Trucks like to swap ends around on your really fast when traction is lost, dry or wet. Panic brake at either high speed or on ice and you'll do a 180 before you know what happened. Terrifying, especially on our shady mountain roads where black ice lurks in the shadows.
I've lost count of two things:
1. How many times I've come upon the scene of an accident involving a truck where the truck is pointing back away from the flow of traffic (tells the whole story)... and:
2. How many times I've seen 4x4 vehicles upside down or laying on their side in the ditch when the snow comes down or on an icy road; Honchos that lift their trucks too often seem to pick precisely the wrong tires for inclement weather: Fat and wide knobby M/T tires are like driving on bald tires in ice and snow. Tall and skinny A/T tires with plenty of siping wins on icy/snowy roads.
All I have to do is take one look at a guy's truck to tell if he either knows what the hell he's doing or let some tire-mounting retard at the tire store sell him what looked bitchin'.
Winter is coming soon, and I'll be seeing a few dozen more accidents from the flatlanders coming up to ski the resorts in Tahoe who were sure that just having 4x4 is all they needed.
Surface area vs. PSI. the winter tire ‘equalizer ;)