Don’t worry about driving in the mountains. Your rig will do just fine even towing the Wrangler. Speed limits out there are 80mph and while you might not choose to go that fast your truck will do you proud. There are a few passes that might slow you down to 45 or so for a few minutes in the truck lane but don’t let it bother you. I’ve been over the Rockies a number of times in a 33ft gas class A and I have no complaints. Enjoy your trip!!
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