I have the up down air setup under the hood, compressor inside the cab, may move the up down air setup in the cab as well it runs chucks to all four wheels and you centrally set tire pressure up or down
I did not have to fender trim but I do have aftermarket liners. The only thing I found was to make sure you set the bumpstops because with the gamechanger it will flex until the shocks run out and then you cant turn because your tires are up against your inner fenders when purched on a six foot...
You will be absolutely fine with a stock rubicon on most trails like everybody mentioned.
How hard have I pushed mine. Black hills 5+ trails but I have 38's fender chop and 3.5" lift. I rubbed just about everything but still have only the stock skids and did not hit engine trans or transfer...
Just before I traded my 2020 off I hit a deer with it by my brothers farm Luckily it was small I hit it with the bumper,skidplate and then drove over it. In the last two years I have hit 3 turkeys and 2 deer
Here is my old one with 3.5 gamechanger and 38's the ride was awesome, I did however change out the rear springs later on because for my purposes the metal cloak springs were too soft when using my trailer or packing it up with gear so I installed Clayton 3.5 inch overlander springs in the rear
52 here only had 4 jeeps probably about 10 trucks first on being a 78 ford f150 with a planted 351 windsor from a 76 granada 4 barrel and 35 inch tires
I went everywhere I wanted to go in he Black hills only had to use my winch to pull my nephews JLUR off some rocks that he turtled on and one deep trench where he thought he could follow my line.