JIMBOX pretty well covered it.
I'd add to #6: sleeve and gussets on the front axle if going to 35's and above, especially if going off-road.
Anything over 3" lift, you're looking at new driveshafts, due to the boot getting torn off.
Overall, the JK is the closest Wrangler Jeep has created that resembles a car-like experience. By no means is it a car, it still feels much like a Wranger, but more stable and better handling than previous generations.
2008 2-dr Rubicon, auto,
RK 2.5" Max Travel, Rancho 9000XL shocks, 37" Nittos, 5.38's, RR skids, Warn VR8000-S.
RIPP Gen 2 Stg 2 Supercharger.
Political Correctness offends me.