Thanks to special-K and all the rest of you for sharing this stuff...no way I'll ever have a personal collection this extensive from this era...but I can wallow in this thread as much as I like.
Be warned, the oil embargo, double digit inflation, and econoboxes will change all this fun shortly.
Edit on 3/25/11: (practicing using the Edit Post feature on a rainy day).
While performing a lit self exam this morning, I found these two.
X-8042 has a GM copyright date of 1968.
X-8041 has no date. Is that the rare Bowtie driveshaft in the last pic ?