Well, lots of threads for sure. But no consensus, especially for street driving. Some rub with 37s, some don't.
Depends on a whole lot of things, including actual tire height, wheel offset, and I would imagine tolerances. The difference between rubbing and not rubbing can be less than 1/4", and these are Fords, not German cars.
The one thing for sure that I've learned from all the contradicting posts is that 37" tires may fit. You may need to do some minor modifications depending on your off road use, but for daily street driving I've read enough posts of people reporting no rubbing that I'm fairly confident with going that route. And if I do, and there is rubbing, it will be a relatively easy/minor fix.
I was opposed to doing mid perch but opted to go that route to reduce the likelihood of rubbing. I'm going with 37x12.5 GY Kevlar on Method Fat Fives with 0mm offset and 4.75" backspace. Got my fingers crossed. I'm tempted by the 37" Nitto Terra Grapplers because they are 1/2 shorter. That will further reduce the likelihood of rubbing. Will it eliminate it? No. Especially if I then decide to go off road. Which is why I'm more leaning towards the GY and then dealing with the rubbing when and IF it becomes a problem.
Unfortunately I have not found a definitive answer to this question. Many posts going either way. If I'm way off I'll welcome the education. I'm just a newb. With tire/wheel money burning a hole in my pocket...