Chippopotamus

They will fit. I have a 2018 Sierra with a motofab 2.5 inch leveling kit. With some minor trimming I was able to put Nitto Terra Grapplers 35 x 12.5 x 20s on and the only time it rubs is when I am backing out of a parking space at full lock. I wish I had a picture but I have had the tires on for maybe a year now and have had zero issues other than some minor rubbing.

Dude the haters can hate but I'm running practically the same thing and it looks great. I have a 2.5 inch motofab leveling kit on the front only and I jammed some 35 x 12.5 x 20 Nitto Terra Grapplers on there and the only time they rub (which is minimal) is when I back up turning left on full lock. It looks very similar to yours. I did some minor cutting but rubbing like I said only happens when I am backing out of a parking space or something. So if anyone is wondering, 35s WILL fit with a 2.5 level with only a little cutting and some minor rubbing. If you can deal with that then by all means DO IT!