I have an 82 4WD wagon and I'm desperately looking for a spare set of wheels. I don't have access to anything but 3rd gens, so will they fit? Thanks!

If you mean the ones off the Loyale style, then yes they fit without any problems. The earlier rims won't fit only the later models because of the later model bigger front brakes, but fitting newer rims onto older cars works.

That sounds correct. I remember making 1/8" thick spacers to use a couple of old rims on a newer (86) gl. It was due to the brakes hitting the inside of the rim. I don't remember why I wanted to do it however.