If you check the OP’s posts you will see that he sold his 1.5/1” spacers and upgraded to 2.25/2” spacers with a larger 285/75-17 tire. I have the 1.5/1” Cornfed lift on my Pro and I am considering a 285-70-17 myself. My center of hub to top of the inner fender arch up front is 22.5” and 23” in the back. I am currently running 275’s.
I have this same setup on the same exact truck and I wish I had gone with 285/70's to begin with. That said, I am planning on King's and 285/75's here soon.