Acropilot, I'd suggest bypassing Teton Pass unless you just love to stress your chassis. The road isn't that bad, but there's not much to see on the back side of the Tetons (except the giant potato on a farm wagon at a closed drive-in theatre) I'd go Cody, south to Jackson, then return up through GTNP and into Yellowstone again, this time going up past Old Faithful. You'll see lots more wildlife and be in the NPs instead of an Idaho state highway. Stop in Moose for lunch at Dornan's teepees, drive in your toad out Antelope Rd. to Gros Ventre slide for a bit of natural history, (and a swimming hole in hot springs along the way) A hike to Hidden Falls behind Jenny Lake is a nice easy walk. While the parking lots and visitor centers are always bustling, get a couple hundred yards down a trail, (or out of sight of the parking lots) and you still can have a neat experience one-to-one with nature.
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI