Silent Armor with "kevlar"

Probably don't even need one spare...they are, "indestructible."....:)
Anyway, have a good trip to Alaska.

I put a set of load range E's on my 2004 Titan. I really liked them and they seemed to hold up really well. There was no flex in the sidewall and improved the towing feel of the truck. They still looked new when I traded for my '08.

Buy ad inexpensive tire-plug kit instead. Takes up much less space, and can be used for repairing common punctures so you can save the spare for serious damage.

The tread on our Wrangler Silent Armour tires on our Grand Cherokee lasted about 60,000 miles. I can tell you that they aren't immune to punctures from a screw. :)

Save your money. Alaska is part of the United States and IMO, has better roads than many of the northern lower 48 states. We have driven thousands of miles on roads in Alaska and "NEVER" had a need for multiple spares. Now, that said, there are a couple roads that I would not drive, because of the surface composition and those roads have shuttles that you can take.

The key to travel in ANY northern state or province is drive the appropriate speed for the road condition and get as far to the right as possible for oncoming big rigs that are probably traveling way to fast for road conditions.

Thanks for the input everyone. I guess I'm guilty of worry-warting, prompted by the fear-mongering from travel books and government websites, perpetuating the bad-road myths in name of C.Y.A.

Texan, the "roads" you're referring to that offer "shuttles" ... what are they? Do you mean privately owned roads like the one inside Denali NP that's only open to the tour bus concessionaire?

Just my personal opinion, but taking a shuttle is something I wouldn't do, same thing with cruise ships and airplanes. If I'm not in control of the conveyance, I'm not interested.

No, I'm talking about the Dalton Road from Fairbanks to Prudhoe Bay and the Edgerton Highway/McCarthy Road. Both of these roads offer some sort of shuttle service for those that do not want to tear up their equipment.