Where are you going? Up the haul road to the arctic ocean? What time of year? Starting May and figuring June and July, August will be weather friendly is a good way of thinking. I did the trip a few years back and did not have any problems. Went up the Haul Road and any place else I (they would let me) could go. I had a generator, extra fuel, lots of extra everything, batteries, candles, canned food, winch, moose bumper, and a lot of warm clothes. The thing with Alaska is things can go to #ell in a very short time. People who live there will tell you that a nice sunny morning can turn into a 6 foot snow storm by noon. Happens quick, and you will be on your own. There will not be a 76 station at the next exit. The Haul road was not half as bad as I had expected, then again I was lucky one hour good road, next hour white out and no road. If you are staying on the ALCAN and other main roads any good set of all around weather tires should do fine. If you are going into the wilderness invest in a set of toyo mudders or something like that. Plan on loosing a windshield. I had a great time, was way over stocked and ready, not really because I was lucky things change in a hurry in Alaska and it is to late after the weather goes bad. Camped mid July just south of the arctic ocean, temps dropped to 20 degrees and we had sun all night. Was pretty cool, big fire, no one cared as long as you cleaned up after yourself. Lots of space, had to drive three hours once to get cell coverage. I envy you my friend, it is so pretty.