Whoever said that the jeeps 2 wheel drive was wrong...
anyways, the jeep has 2wd and 4wd. when you are in four, both front and rear axles are engaged. the power is split exactly 50-50 to each wheel/side. ALWAYS. they both always have the same power. the issue is that when one starts to spin, it will continue. usually your only getting one wheel in this situation. this is when a locker or limited slip comes it. it allowes your tire that is not spinning to get more power, because it "locks" the axle, so the one wheel wont spin and will make the power extenuate across the entire axle, so instead of 50 and 50 to each side its 100 to the whole. If that makes sense.
and I promise you this is normal. Just today I was stuck in snow, when offroading, and only two of my 4 wheels were spinning. I dont have lockers. tada.
If anyone wants to argue, just take a look around the forum and you will see that I am right.