Scott is correct. There are 3 style bumpers. If you want the bumper pad type, there's one in the parts barn. It was saved by previous persons from whom we acquired the parts, so it's probably usable. It's white.
There may be some differences in fascia support pieces, and there is a difference in the beltline trim at the front marker light. I think it's something to do with the length of the marker light and/or the little black piece that's on the fascia. Ribbed molding was used on all 84s, 85s, and the 86SE and 87SE.
Steve can probably clarify the difference in the moldings at the front marker lights. I think the 88, the black molding piece is removable from the front fascia while others are a cast part of the fascia.