I have a pair in a box over at my new workshop. I will dig them out over the weekend and take some HiRes pix of them and email them to you to see if they will meet your needs. If I remember correctly one needs a new mirror glass portion only as the complete backing is still there. I will need you email address however as I do not know how to attach pix to these post on this site. Thanks. LHUBBERT2@BRIGHTHOUSE.COM
There are three distinct castings for the mirror shells. Pay attention to the spacing of the three mounting points for the mirror mechanism and the shape of the hole for the grommet for the wiring.
Sorry to say that I didn't get your email and in fact I only saw this message this evening (12/04/19) when I came on here. My email Address is LHUBBERT2@BRIGHTHOUSE.COM, my regular mailing address is Larry Hubbert, Post Office Box 34680, Elfers, FL 34680. I just finished moving everything into my new larger workshop and I am in the process of unboxing and sorting and reorganizing all of my parts. I know that I do have several sets of Power Mirrors off of 88 Fiero GT's and several sets of manual ones as well. I will attempt to dig them out of one of these boxes over the weekend and take some HiRes pix for you and send them to your email address as I do not know how to post them on this site. If you have found what you needed I understand it is just everything was put on hold while having to prepare the new workshop and being forced to move from my old one. Thanks and have yourself a great day.