Dually in winter???

[OT-550]

I have a very heavy truck, so I forget I am not in 4x half the time and only remember when I head up a steeper hill or try to push a lot of snow...
Like the rest said, buy Aggressive snows, put a row of green firewood across the back (easy in and out, heavy enough, doesn't slip around) and keep the hubs locked in. Flip the lever (switch, whatever) when you need it. Chances are you won't need to as much as you think.
Biggest hassle with duals is remembering them in drive-throughs and on corners...I ran over a LOT of curbs the first week..

[jbecwar]

I drove them for work at Alyeska, and they were fine, just make sure you get limited slip, keep some weight on the rear tires, have good tires, and keep your rpms low. I almost never used four wheel, and I'm up in Fairbanks.
-James

[BlueMuleTrucking]

Oh I must add, I have an open rear.

[RLDSL]

I put a set of mudders on the rear of mine and with 150 gal of fuel in the bed tank, it does OK on snow, but ice it still breaks loose in a heartbeat . I didn't put snows on it because I almost never drive the thing in the snow, that's what I use the cars with the snow tires for, but I had to run up to Michigan last winter to pickup a 32ft enclosed car hauler and it was in the middle of all those storms. It did OK once I got the trailer hooked up, before that I got sideways a couple of times on the interstate
Get yourself a full set of studded Nokians on that thing and you'd be ready to rock. Those and some weight and the ice won't be a problem