The issue with diff and transfer case damage is only a consideration when the rims are different widths, then tyres need to be 2 different profiles to keep the same rolling circumference.

My 2009 X3 has:
235/45/R19 8.5Jx19 ET46 front
255/40/R19 9.0Jx19 ET51 rear

Double check the rim width. Obviously the wheels need to clear brakes and wheel arches.

__________________
Neil

2016 X5 3.0D
2009 X3 3.0D
2005 X5 3.0 Diesel Sport (sold)
2007 320i (sold)