My understanding is that this will be a production lift.
This thread once again reminds me how much I wish there was a 36" TrXus. Hmmm where have I heard that before? Or any other reasonable 36" tire I could DD. Just can't bring myself to Irocks or traditional swampers.
There is the KM2 that i just noticed in 345/75R16. (36.4" x 13.6" on a 16" wheel) Higher load rating than the 37; ability to use stock wheels and about $50 less per tire. It has me wondering if I can squeeze it in the wheel well.
I agree that 36" is the sweet spot for these trucks. 35 or 37 aren't bad either.

If your wife wants you to get 37s, do it. Why are you even asking us?