Would an 18x7.5" wheel with a 38mm offset fit on a 2" lowered xb?

 

look around here. not necessarily to buy there but to understand fitments. gl. there is a lot of tech articles about offset and such. i bet one could also merely call and ask. the advice you get here from lay folk may cause you to buy a wheel that fits the bolt pattern and offset but requires longer studs, etc. a person that knows the wheel you're considering and the car you own is important.
not to be a "homer" for tire rack, you can get a lot of the same info here.
g/l