Help me compare to Grubrunner's setup
 

Grubrunner is running a 2.5" spacer with 20x10 Moto Metals (Backspacing: +18, offset: 5.5") with 35x12.50x20 Toyo MTs. He said he had to do some trimming, but now there is no rubbing. Here is his thread where he describes his setup.

https://www.f150online.com/forums/sh...with+new+shoes

I am currently running Bilstein leveling shocks. I want to use my current wheels which are 20x9 Black Rhino Keros (Backspacing: +30) and add the 35x12.50x20 Toyo MTs.

Given that Grubrunner's set up doesn't rub, would my setup rub with the addition of the Toyos?? I don't understand the whole offset thing well enough.