We stopped for 2 seperate folks who blew tires, one was a couple from Georgia on a honeymoon with an Explorer running 4 bald tires, they had blown one and we happened across them when they blew the second. Took them and both spares to Coldfoot where they were "raped" for 2 used tires, but it beat the alternative.
Be sure to stop in Coldfoot at the diner for breakfast, it was awesome! We had to stop a ways down the road because we were sleepy though.
Good tires and a good spare would be a good idea, if I remember right there was no place to get gas after you left Coldfoot until you got to Purdoe. A little extra gas wouldn't hurt, especially since 60's are a litttle thirsty. There are a few very interesting places on the way up, one was on the other side of the Yukon, the other was in the middle of "nowhere" You'll know it when you see it if it is still there. It was cool to see so many types of waterfowl in one place, we only saw one musk-ox. We did see it twice though, he hadn't moved far by the time we started back down.
Definately look out for the oncoming trucks and the small boulders they throw up on the way by, mud flaps may help your quarters from getting nicked up.
Neat trip.
Oh yeah, and the sun never set on our 3 day trip.
I guess they have a website now...
http://coldfootcamp.com/