This post made me do some research. I have kept track of every single part I have replaced - and I have replaced most of this car over the past 20 years.
I could not find a single notation of decklid struts. I looked at old pics of the car from when I first got it all the way up to the latest pics from last week. And yup, they are same old original struts in every pic.
In 20 years they have never failed. Not once. Even with a big delta wing, it opens with simple push of the button and effortlessly pops open almost by itself. And it stay like that as long as I leave it, sometimes for days.
Closing it is also a snap. It glides closed with a very light pressure and clicks shut.
I don't even know what kind of struts they are. Are these magical Detomaso struts? Am I just lucky? Or what?