I had my install done at 4-Wheel parts. My friend works there and he did it. Did not need Wheel spacers at all he said. Plenty of room for tires to move. I disconnected my sway bar few times and did some moderate trails with no issues. It did not require any added trackbars or anything. They did install realigned the steering wheel and it has always driven straight and good.So question, I'm on my 3rd wrangler, 2021 Sahara Sarge 6sp, and I want to do what you did, level kit and 275-70-18 Toyo OC AT3's... Query is on the teraflex wedsite it states wheel spacers or new wheels are required which I find odd, and I don't plan on doing either of those things at this time. You didn't need wheel spacers did you? Any issues with any rubbing front or rear? Also did you add anything besides the provided longer sway bar links such as trackbar to keep geometry correct?
A little better picture's of it below. That Tearflex kit is all you need for 33's I am not sure which one you are reading on the website. He told me that new shocks were not needed either. if you are planning on doing BIG off-road trails higher then 3 you might consider shocks. For what I was using my 2019 for it suited just what I wanted. Removed factory rake (front 2" rear 1.5") and gave jeep that more aggressive stance.