Don't know, they are at my parents' place. I'll be back there on Saturday. The two for the rears were in pouchs that I didn't open. The remaining front nut was on the stud. But I have a feeling they are not the same, even though the studs looked the same, the rear ones might not have a flange on them like the front.

Rear nuts should have a flange. I have a Monroe rear nut (extra in the package) for you if they match. Lemme know, John. When you can.