you can feasibly put the 87-93GT ground effect on a II however you'd have problems with mounting, and you'd have to modify them around the door, cuz the geomety on the II's door is slightly different than the foxes
We had clamped my set of black GT ground effects on my Dad's 78 Cobra, but unfortunately didn't snap any pics at the time. As 98CobraClone mentioned the side exhaust pieces would work as well, and if you'd have to do some work to modify the stuff anyway it wouldn't much matter.