I know some have had KO2 265/65r18’s mounted without rubbing, but not sure if that was with terrafirma wheels with spacers. The offset makes a difference as to whether they will rub or not. With the terrafirmas and spacers, you have considerably different offset than, for instance, the 18” compo rims or some of the tuffant rims without spacers. I just don’t remember reports on that particular wheel.
I also believe there might be some variation on how much those frame horns stick out. There isn’t much clearance even on my 265/60r18’s, so a little variation in that frame horn can make a big difference.