Every defender made has the same stud pcd, 5 x 6 /1/2" (165.1 mm) same as Series, RR classic, Discovery 200 + 300 TDI. Early 90/110 had a thicker drive flange which prevented LR alloys from sitting square on the hub, also the studs did not have a small slot marked on the end which apparantly signified whether or not alloy wheels could be fitted. All Defender 300 TDI + TD5 + TDCI take alloy wheels. TD5 Discovery has a smaller PCD, same as a P38, alloys from them will not fit Defenders without adaptors.