Numbers are located on the casting on the drivers side just back of the pinion toward the bottom. But if its got a removable third member then its a 8 3/4. If it has a removable rear cover then its not.
What rear end does it have underneath it? I am looking for a 742 or 489 case with a sure grip. If it doesn't have a sure grip I may still be interested but at a reduced price of course.
Most cars (like mine) came with 1 outside mirror on the drivers side. So if you like having a pass side mirror you have to find a set. Also the glass tends to fall out after time from age of the adhesive (as mine has)
Did the guy buy the car?
Otherwise I also would be interested in both outside mirrors.
shipping would be to 46368 (portage, IN).
those quarter panels are worth money too since nobody makes patches/panels with the higher wheel arch.