My wife and I made a very similar trip the year previous to yours. We started and ended in Seattle. I took spare parts including spring leaves, head gasket set, fuel pump, water pump and other stuff I no longer remember. The only thing I needed was a part I forgot to bring, a fuel filter that plugged up 20 miles from Dawson City, YK. I nursed it to the NAPA store in Dawson and got a replacement. The old one was plugged with what looked to be goat hair.

I'll upload a couple of pics. Their locations will be obvious.
Attachments
Chicken_AK.jpg (130.53 KB, 262 downloads)
ARCTIC_Circ rev1.jpg (160.36 KB, 260 downloads)


1951 3800 1-ton
"Earning its keep from the get-go"
In the DITY Gallery
1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971.