If you chain the outside wheels on a dually, do you have any issue with the chain tearing up the sidewalls of the interior tire? Doesn't seem like it would be any different than having the chain rub on the tire with the chains on them, but anm I missing something?
Regarding whether to put chains on the front or rear, in really bad conditions, if you only have one set of chains, I've had better luck putting them on the front of my Jeep. Steering is definitely better, adn I've never had any indication that he rear would try passing the front going downhill. When using chains, you'll probably be driving very slowly, so the slight bumping won;t hort ball joints or any other suspension parts. The main thing to ook for is to put the chains on, then turn the wheels to full lock both left and right to make sure you habve enough clearance between the chain and ball joints, etc. Most vehicles don't. Using the thin cable chains on the front and regular chains on the rear works well.
Want to know how to easily install the chains? Just lay out the chain in front of the tire, then put 2 pieces of wood (I use a 2 x 6 about as long as the tire is wide) between the links about halfway down the chain. Drive onto the wood blocks. The chain will now be loose and you can easily move it around the tire, adjust it, etc. Tighten it down, then drive off the wooden blocks, retrieve them, and you're on the way. Only takes a couple of minutes per tire, and you can do both side (or all 4) at once as long as you bring enough blocks.