If you're determined to get a lift, you could go with a 4" Mopar lift.
If the dealership installs it, then it will be covered under warranty.
If you go with larger tires, be sure to re-gear.
Here's a shot of the wife's 2016 Hardrock JKUR with 4" Mopar lift on 37" Falken Wildpeak MTs.
The...