How to replace a lug nut on a 98 ford windstar?

im some wat con fussed on weather you ar talking about the lug nuts or you are trying to replace the studs for the lugs ar holding your wheels on and the stud is what holds the lug and the stud goes into the hub and the hub is held on to the spindle but if you are in fact changing the studs then you will need to remove the wheel and brake dorm and drive your stud out and drive new into its place would also get new lug nuts for studs it helps if you use a in pact to run the lug nut up and then seat your stud into the hub hope this has been help full