Hey, it's the off-topic section, and I know more than a few people here drive 4WD trucks, so here's my question since I'm not finding answers elsewhere... My economical little Subaru Outback is fine on urban/rural snow and ice. But I also have a truck for hauling stuff - 4x4 of course - for fireroads, deep snow, light offroading, etc. I'm thinking about getting a "new" old truck, and I've had more than a few people tell me that you cannot use snow chains on the front axle of many American 4x4's. I know you can't chain up a Subaru because of the AWD differentials and minimal clearance. But why would that also be the case on a big honkin' American truck with all the room in the world underneath? Differentials? ABS? Something else? I like the idea of chaining up all 4 wheels if it gets hairy in the hills, so I don't want to buy a truck that won't let me do it. Where can I find out the real scoop about specific brands/models? Thanks in advance.