i lived in fairbanks for the past three years. it all depends on what your into. where i was at there wasnt much rock crawling so to say, but down south there are some rocky trails. where i was at id say a crawler box would of been good to have. good for being able to stay on top of the snow. as for summer wheeling, it would of been great to have just for the control, and there were some steep climbs where i would bog down in just low. there is a lot of mud, just about every trail you go on in the summer your gonna hit some sort of mud. but i would say a crawler box (2.28x2.28) would be good to have, but an ultimate crawler (2.28x4.7) set up may be over kill. we had three guys in our club that had low gears, on zuki with 5.1's, a jeep with a klune-v, and a yota with an ultimate krawler set up. they always seemed to have the most fun and be able to go just about anywhere they wanted.
heres a couple of links to alaska wheeling forums. i know theres a few yota guys in each of these forums so just ask around. hope this helps.
first one based out of fairbanks.
http://www.arcticoffroad.com/modules.php?name=Forumssecond based out of anchorage.
http://www.wheelingadventures.com/Northern4x4/ikonboard.cgi?s=22b50b0ab9ffac5b5720d32fdbc2e172&and last alaska in general.
http://www.alaska4x4network.com/index.php?
