As a matter of fact I do.
Cool. I have a 2.3L MT and like several others on Bronco6G who have the same, I did see an increase in mileage going from 35s to 37s. Most likely from cruising around 300rpm lower and a narrower footprint which possibly contributes to lower rolling friction, Whatever the reason, several of us saw the same results. How is your Bronco configured? On Bronco6G?