Yes, I'm aware of the automatic transmission power robbing.

It pays when you pay attention to what's under the hood. Always tune it, and with good equipment. Replace what needs replacing, etc...I'm obsessed with maintenance. And good parts. Funny thing, when i sold the Bronco to the new owner, he found metal pieces in the oil pan but still ran well until a valve let go.

I don't know what to say about the bigger tires. With only two inches of extra meat, it couldn't make that big of a difference. It launches much easier, goes down the highway with less rolling resistance, that's for sure...but steering was never easy, haha. Couldn't comment on 31"s, the Bronco always had 33"s.