Diff ratio help

No kiddin. I caint believe anyone would ever agree with that! A transmission with TWO over drives and a 28" tall tire with a 3.08 gear. Have at it! No way I'd run anything numerically lower than a 3.91. That would be an absolute minimum. I'd be leaning more toward a 4.10, 4.30 or even a 4.56.
4.30 + and use it as a 5 speed except for stump pulling.