Automobile(s): 1988 Allante' (sold), 1984 Eldorado, 84 Sedan DeVille
Would be nice to know the year of Allante you own! Early cars had a lock on the cover. Unlock cover, move passenger seat full forward, tilt the back rest and the cover slides forward on a track and at the very end of the track you lift it up.
Automobile(s): 89 allante red soft top, subaru outback for the winter
Sometimes, in my case, the panel in question is very tight against the fold down rear panel (near the rear of the panel once it is fully in place) . You will notice once the panel is removed, that there is a guide top/bottom for the panel to slide in.