This kit is for 90-92:
PN: 41120-00001
http://www.courtesyparts.com/Merchan...de=41120-00001
This kit is for 93-96:
PN: 41120-00002
http://www.courtesyparts.com/Merchan...de=41120-00002
Neither one specifies aluminum or iron. I would think that they would need 2 different rebuild kits. I have aluminum calipers that came off of a 90 but they could easily be from a 93-96 car originally and I wouldn't know the difference. Anyone know which I should order?