I'm running 2.5" on my 2018 JLUR (Metalcloak) w 37s. I've had it this way for a year and it's mostly fine - drives great and looks great, and I feel omnipotent on the trails, there's nothing I won't try :-).
However it rubs a little in the rear under some circumstances offroad. I've tried...
This is my first Jeep and first wheeling out. It's still stock tires and suspension (JLUR), and in my 3 trips so far I scrape pretty regularly. Yesterday's outing included a steep down over rocks and it sounded terrible (the crew I was with inevitably said 'it sounds worse than it is').
So it...
I've read a gazillion threads and watched a bunch of videos on this subject, and I'm posting as a last stop before finding a cb install shop to figure it out.
Here's my setup, and the testing I've done already: I've got the Cooltech mount on the lower hinge (upper hinge won't clear my garage)...