I figured they were probably the same size, just wasn't sure about the offset or bolt pattern.
BTW those BFG KO2's look crazy compared to my Goodyear Wranglers. Once these are done, I'll probably spring for Michelin LTX. I had those on my previous truck (93 C1500) and never got stuck again. Though I often wonder which will last longer, the tires or the rest of the truck.
Also looking at your hour readings, I think mine must have been reset at some point. Last I knew it was 3k something, and my oil pressure has been low since I got it 4 years ago. You have 9691 hours on your '11? It must have been well maintained. I already have a new oil pump, pickup o-ring, bypass valve and other seals, and probably the 3rd or 4th sending unit. The only time I even see 40psi is when I'm pulling out of my driveway in the morning. After a 20 minute drive, it's less than 10psi at idle, and maybe around 20psi at 55mph. It never reaches 40 psi when fully up to temp.