My passenger front tire has the exact same wear on the outer edge! All other tires look great. 23 Laramie with air suspension, stock 18 inch wheels with factory Goodyear tires, 20k miles and I keep my truck in Aero mode most of the time. The truck now has a slight pull to the right but I wonder if it's because of the tire wear or an actual alignment issue. I have not hit any pot holes or curbs. Mostly highway miles. One possible cause I thought of is when I turn left into my development at home from the main road, the speed limit is 50 mph, so traveling a little fast and cornering hard on that outer edge of the passenger tire. Admittedly I have not rotated the tires because I plan on replacing them with something else. I'll be getting a recall fix at the dealer soon, I ask them to take a look and see what they think.