Anyone?
Bueller? 
They are studs, not bolts. You access them from inside the car, behind the seats.I just bought a new Pininfarina emblem for my 1991 Spider. These are the ones that go on the rear fenders. It has bolts on it! I can't imagine how you you would access the nuts on those bolts to remove and install. Anyone done this before?
Thanks
Sam
good job aligning them.I opted not to use the rubber gasket that came with the plastic emblems from IAP. I just used some contact cement and glued them in place. I kept the pins on to position them. Trimmed off the excess glue and I now have what I think is a pretty clean look.
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Thanks, Dave!Sam is referring to the long rectangular Pininfarina empblems on the rear flanks of the series 4 cars. As to your original question, Sam, you can access these by loosening the carpet on the sides of the convertible top well directly behind the seats. Remove a couple of the black finishing screw/washer combos. There is a vinyl flap that is glued in place at the top of the well to conceal the cavity itself. Pull that flap loose (you can re-glue it with 3M spray upholstery adhesive), and you can reach down into the cavity to the back of the studs. You can use small "speed nuts" or the round push-on retainers ("push nuts") commonly sold in hardware stores.
The body shop quality double sided emblem tape is indeed very good at this kind of thing, also.