The XD uses 14MM studs and MAG seat wheels with ~6" backspacing and same 77.8MM centerbore, simple answer to your question is they won't fit without an adapter. BORA makes an adapter to go 14MMx1.5 down to the 12MMx1.25 that the Gen1 and non-XD trucks use, which will also help with the large backspacing on the XD wheels.