I think you may be right, I made some photoshop overlays to compare offsets.

Jay's 305/70/16 (-12) vs stock (+38) 245/60-18


Little Beast 33x12.5R20 (+15) vs stock (+38) 245/60-18


Taylor Richie 33x12.5R20 (+10) vs stock (+38) 245/60-18


Calculator didn't have 33x12.5R20 so came as close in width as I could.

The side view of Jay's offset does look like (+12) not (-12).


Time to get Jay's input on this.
I will remove offsets on Jay's for now.

Gene