69 Camaro Rear End ID

[169yenko]

I did not think the rear was original to the car. It was there when I got the car and is still working well. Drove it today some. Car codes out to a Norwood built standard 69 V8 with 711 standard black interior in 55 55 Azure Turquoise in the 32,000 sequence numbers. I'm learning on this stuff. My cowl has no X code, but I understand early 69's or before December builds did not. Does that mean there were no Z's or other ie SS etc before the X codes appeared? I know this is another question off the post topic.