Im a mechanic and own a WJ 4.7L myself, I love the dam thing, it is a great vehicle and I wouldn't daily drive anything else! Welcome to the family
Before getting into the lift and tires mess, I will give you a great list of PM to do with your jeep, do with it what you will.
- Spark Plugs: champion or autolite copper type only
- Fuel filter
- Air filter
- Transmission pan service: drop the pan, clean it out, replace the spin-on filter and the normal pan filter, use synthetic ATF or ATF+4 only
- Differentials Serviced: Drain and fill both diffs with new gear oil along the needed friction modifier for your limited slip clutch packs.
- Front & Rear Shocks
- Replace your pads and rotors if need be.
- I wouldn't replace anything steering and suspension, especially ball joints, unless they are in need of replacement...that stuff isn't part of maintenance
- Don't replace your O2 sensors unless you have money burning a hole in your pocket
The maintenance on a vehicle is actually very simple and mostly inexpensive...too many people go over board with it.
If you want to lift your WJ I would go with a bigger company that you know will stand behind their product like Rough Country or Rancho
I will be grabbing one of these when I finally get finished with trade school and my International training