A tire's height decreases by 3.3% when mounted on the vehicle and resting on the ground. So a 37 inch tire will be 35.77 inches in diameter mounted and on the ground. BFG says that tire mounted up is 36.5" which is 35.29 mounted and on the ground. About spot on according to those photos in post #7.
Given that, shouldn’t more people on this board be able to fit 37s versus complaining about trimming to squeeze on a 35 inch tire?