Ok, Here are the blue Robbins, I think these were done in the plants that mostly made Chevelles, El Cs and the like.
Here are the rears, 3910 with date of 9K70
Here are the fronts, (2) 3900, a 3950 female and 3950 female 32K69 (hardtop shoulders)
and (2) 3953 Females. I think these were El Caminos shoulder belts (the ones with the sliders)
Here is the left over loose parts, some retractor parts, etc
Obviously, rusty, crusty and damaged, but still some good parts here.
Its tough to price these!
now $50 plus shipping