I have a 2017 f150 4wd. I'm doing a 2.5 inch leveling kit, 18x9 wheel with +1 offset, 285/65 R18 tire.
My question is does anyone have this exact set up and will any trimming or removing crash bars be necessary.

According to an American Trucks youtube video you can fit up to a 33×11.5 on a 0mm offset 18×9 wheel with a 1-3inch leveling kit... without rubbing?

 

Should be fine. I had the same tire size when I bought my Fuels and they are +18. The tires I have on now are 275/70/18 and they fit perfectly.