Good luck. I hate Americans. The few late-model Chrysler's I've wrenched on weren't nearly as nice to work on as some of the europeans like Volvo, and most of the Asian stuff.
You'll be working on a lift. If you can reach it from the bottom, you'll be doing it from there. Much easier on the back.
And trust me. DO NOT take the tires on & off three inches off the ground, like you'll immediately want to. The rest of the guys will laugh at you, because that's a red flag that you've never worked on anything taller than jackstands.
You can reach the filter on late-model Jeeps just fine from below. American tuck makers have even begun to do you the favor of sticking this cute little plastic chute over the front diff, so the oil doesn't dump onto everything.
Do your tire work at eye level. Drop it to the ground, do your thing, then 'roll' the tire up onto your thigh and 'knee' it up to chest level to reinstall it. Easier on the back than any other method - especially hunching over to do it down low.
