We just did the Powder River Pass 5 days ago, went west to east pulling a Jeep. I put the V-10 in Drive 3, maintained 3500 rpm's and up we went . . . .at about 40 mph. Not a whole lot of traffic on that road. I did have a point where I had two cars behind me, came to a pull out, so I moved over, the 1st car passed, the 2nd held back for some reason and I ran out of road so I had to stop to let him pass, this ended my momentum, took me a little bit to get back up to "my speed". At 8300 feet I thought I was on top of the world, my daughter then reminded me we had another 1300 to go. The scenery on the west side with it's steep rock canyons was spectacular, so glad I did it. The east side, our downside, was beautiful in it's own right, rolling timber filled hills, long way down, no problems, just took it slow.
WARNING: Hwy 16 from Newcastle to Custer is under "major" road construction..... on the Wyoming side and on the S. Dakota side. There is a section near Custer where there is no road at all for about 5 miles . . . pure mud, I swear the road crews were making bets on the side whether one was going to make it through or not.
2011 Chateau 31 ft. (2005 Jeep Wrangler)