OK thats what I thought - now I have to figure out how to get that sucker on my 87. I have heard that the mounting brackets can be pried off with heat and then re-glued to the other reflector. However, even though I was reluctant to change the sheet metal of my car, it may be easier to just weld on the rear mounting piece of an earlier car. A gentleman from TRE cup said that that is what they have done in the past...
I'll let you know how it goes.