If all else fails, you can jack up the back and spin the tire and count number of spins the drive shaft does to make one complete tire rotation. Taht also can tell you what your Gear ratio is... A little more of a PITA but not too bad if you have a decent jack.
Hey Giano, I'd start a new thread and tell us a little bit about what kind of wheeling you do. I'd also check outy the gear ratio chart that been linked several times on the forums....it'll answer the gearing question....and you telling us about what kind of wheeling you do will help us recommend a lift for you.
I saw that and saved the Chart but i was confused. If higher gears help you crawl better then why do you need higher gears with bigger tires for 75MPH? Does the chart refer to highway miles?
I wont do off roading but I will be using this wrangler with daily use and occasionally a trip to VT, Boston, Metlife Stadium. I live in Connecticut and the farthest drive for me would be about 3 hours max. I just want to make sure i dont lift this wrangler and put huge tires on it and then I can travel more than 50mph on the highway because the car wont move.