Okay, I screwed up. I was re-installing my rear clip and had not yet connected my gas struts when I lost my grip and dropped the bodywork. It slammed shut fairly hard, and evidently impacted the center retainer post at a bit of an angle, as the lynchpin no longer slips in easily. Worse was the fact that the four screws that hold the metal retainer ring in the roof are now loose and spinning freely. I can't recall what the four machine screws threaded into. From beneath I now just have the four screws protruding from the surrounding fiberglass. Can someone shoot me a pic of the underside of the rear clip at the retainer post grommet? My fear is that there was a threaded insert that may have broken off.