I am a new Jeep TJ owner. I have wanted a Jeep for 20+ years. I was finally able to pick up a 97 with 78k on it and not a bit of rust anywhere. Long story short it came with like new 33" tires and eventually I will down size to 31" in the future. The axle says 3.07 and most likely it hasn't been changed, but I don't know for sure. I drive it daily and stay under 55 for the most part and 4th gear is where she runs. It doesn't seem to lack for power. I am going to try determine if it for sure is 3.07. Should I wait until I do a tire downsize before I re-gear? I've seen recommendations to run 4.56 with 33". Just not sure how important it is to re-gear. This is all new to me.