I was referring to tire size. Rim size doesn't really matter (except for some clearance concerns). 16/17/18 are all stock sizes. Many run 15's. And some choose to go up to 20 or 22. Tire height and width are what matters for lift and gear selection.

Your best bet for warranty questions is your local dealership. Find out where they stand on lift height/tire size/etc. Some are MUCH more mod friendly than others. And even if your dealership denies a claim, you can always try a different location, or fight your way up to someone who will look into the issue. (assuming it is actually a valid warranty claim and not something stupid like expecting them to warranty the new gears you had another shop install).

 

Dana 60s and coilovers but seriously i started with lights just because I do alot of outdoor activity s before light and I would prefer not to run Into the marsh while going to the blind then next came a 2.5 tf lift and disconnects then came 35s then came bedling the tub
I would start with cheap DIY self things like bedling the tub it's awesome without a top and when you clean it just pressure wAsh that puppy out

 

What gears are you running right now? If you have 3.21's your going to have to re gear if you go 35's and don't want to feel like a slug. I have 3.73's with a 6 speed and its borderline. If I dident live at sea level re gearing would be in my list.

 

I see you're in OKC. I'm in the area, and I haven't heard of anyone complaining about dealers voiding warranties due to lift kits, and I know a lot of folks here. I bought my Jeep from David Stanley, and I had some warranty work done in the last month. I've got a 2.5" lift kit with 33's and had used a ProCal to set speedometer. They didn't say a word about the lift or anything else aftermarket for that matter. It was not exactly clean when I brought it in either. Stock skids are also devoid of paint in a few areas.