The Burma road definitely does not need a high clearance vehicle, unless things have changed dramatically in the past couple years. I drove that road in my Pontiac G6. It was slow, dusty and practically nothing but washboard, but clearance was not an issue.
We did the Burma Road on the Belfair cache machine, so I to know the road, but I don't know Ruby Grade Road. I was looking for a comparison if someone has happened to have driven both. I was also looking for some input on vehicle choice for the Ruby Grade road, though I did find some information on a Washington Goast town website that calls it a 2WD medium clearance road, so I'm thinking the 2WD Dakota should be okay, but not sure if the minivan would be high enough. But I'd still like all the input I can get.
Thanks again,
SirKarp ~ Rob