I think you guys are missing my question. I understand that when you put bigger tires on the factory gears that you raise the overall gear ratio which lowers RPMs on the highway, which means you probably can't pull high gear on hills anymore. And I understand why some guys would run lower gears to get better off-road performance which of course means higher RPMs on the highway.
But my question is what is the problem in daily driving with the Jeep running in 7th gear (or 6th or 5th gear) going up hills when you put 37s on the factory 4.10 gears? In other words why would I want to see 8th gear going up a decent grade or even a mild grade? I just don't see a problem running in a lower gear going up hills. After all I am not going up hills full time, I am going down hills half of the time!