[1976gmc20]

My understanding is that the Alcan and Cassiar highways are paved all the way now, so it's not quite the adventure that it was back in 1977/1979. I would suggest doing the Cassiar at least one direction as the scenery is breathtaking the entire 400 or so miles through northwestern BC. I did it both ways, and it was much improved coming back 2 years later.

Unless things have changed in 40 years, there isn't much real off-road adventure in Alaska. Mostly you have to hike, fly, or boat off a maintained road. Pretty much everything is either a built road or muskeg/bush/mountains. Of course there are some gravel roads where a capable vehicle is always an advantage, but there's a good chance you may never lock in your hubs. The only real "four wheeling" I ever got to do up there was gleaning firewood from power line right of ways. You probably can't do stuff like that anymore, and anyway you can get buried to the headlights if you go the wrong place and that's a little too much "fun."

It's a dang shame that you can't take a significant sidearm through Canada, at least that I know of? You might want to check into the paperwork to take a .30-30 levergun or a 12 gauge slug gun with you.