Just a suggestion or two from an Alaskan-local:
- I would suggest that for any given road type (i.e. divided highway, gravel road, chipseal road) that many of the roads in AK are slightly (slightly) worse than their L48 counterparts due to frost effects and (IMNSHO) lack of proper maintenance;
- Outside of the "Major cities" (ha, ha, but meaning Los Anchorage and Squarebanks), any given tire except the absolute most popular will be hard to find just due to minimal stocking.
- Similarly, wreckers and tire repair will be fewer and further between, although not non-existent.
I would suggest: a) having new-ish tires strictly due to the distance one travels from the L48 to Alaska; and b) having ideally two spares each for trailer and truck; although not unknown to blow two tires in quick succession (or possibly 4, don't ask me how I know), having a surplus spare in each size should allow one to get to a sizable burg with a tire shop that has (or can get) replacements or can do a fix. "Spare" btw means rim and tire.
Best way to prepare for tire trouble is to avoid it by driving at a reasonable (= slow) speed as needed.
