No offense but 4.56 is far from perfect with 37 even small ones. All 37s are smaller, BFG is just on the smallest end. 4.88 is the typical going gear for 37, and considering AEV build is gearing towards overlanding and heavy weight, I would argue 4.88 is probably not short enough.With the 8 speed and the 37” km3 or Ko2 being a smaller tire 4.56 is perfect with the new 8 speed auto from what I’ve been hearing.
On the other hand, I can see why AEV would do 4.56. The shorter gears, the harsher on pinion, so they are trying to find a balance point so their customers will not blow their pinions causing warranty issue and damaging their brands.