I have 35/12.5/17. 3.73 gears. My overall mpg for the past 2000 miles is 17. That includes at least 10 min of warming up in the mornings lately. And plenty of snow shenanigans.
Im running 35/12.5/17 on stock 7.5” wheels. I have no problems. I have been playing with my air pressures and am now at 26 psi front and 24 psi in the rear. Running a wide tire on a skinny wheel used to be known as the poor mans beadlock. Airing down is no problem. I have NEVER heard of anyone...