So after much planning and saving, I was able to purchase my jeep a couple months back. Well actually, I was on deployment so my wife made the purchase. She wanted an automatic and I wanted a manual, so she beat me to it by purchasing it herself. Awesome jeep with some extras. It already has a 4in lift and 35's on with stock Dana 35 rear and 30 front. I know that I need a stronger rear axle.
My question is, is there anyway for me to tell what size gears are in it? Someone wrote in paint marker 3.07 on the front axle, but I highly doubt that's right. It's a 2000 TJ 4.0 and when doing 65mph on the highway I'm at like 2500 rpm.