I visited Jack, the former owner of the Z/28, in Florida in April 2012 and he had a few more pics from the mid 1970’s to show me. I took pics of his pictures.
In November 1974, Jack was sent to a aircraft maintainence school at Sheppard AFB Wichita Falls, Texas to learn how to repair C130 engines.
Jacks on the bottom left:
At some time between 1970 to 1976, the vertical trim bars on the tail light came off.