[dicklague]

the fitting is very important.

When we restored my RS we had to rework the decklid extensively to make it fit perfectly. This is an original factory RS decklid with steel base and fiberglass burzel. We had to build up one side with resin and glass to get the gap down to where it should be.

This is an important step so that the job comes out well.

Also prime the decklid well and sand it extensively. You want a good thickness of epoxy primer that is well finished.

Fiberglass ages and continues to cure for years ........really forever. My decklid is over 40 years old and after days of work and proper finishing 8 years ago during restoration it is now showing a little waviness and that normal fiberglass look. So you can conclude that even the factory ones age for their whole lifetime. That is the nature of the beast.