Yeah...I know the factory gaps left much to be desired. But, what might be deceiving between the two pics is that my car has the decorative stainless trim that sits on top of the lens. If you look at the black edges of the housing on both cars (more like gray on the blue car), the extensions sit the same distance back from the forward edge. Also, the bottom edge of the trunk lid on the blue one sits back just about even with the extension. Since my lid is pushed back as far as it will go, that lid still sticks out a good 1/4" further than on the blue one. Now, either GM's quality control on these lids was pathetic...or, there is a difference; again, referring back to GM having two different part numbers for these years. My next trip out to the yard, I'm going to swap lids on a '75 & '76 sitting side by side to further see for myself. Regardless, I'm going to bring the one home from the '75 and see if it matches up correctly with my extensions. The mismatch drives me crazy every time I look it.