Mine is a small block (350) 3/4 ton. I added a few words to my post above to clarify that the 12th or 13th was the date I recall them saying my truck was built, not the date when they added options to the CSTs. My guess is that yours was built about a week after mine based on this article estimating 25 trucks built per hour.
http://www.ultra-high-compression.com/fremont-tour.html (originally posted by SSTim)
Are your side markers lighted? Are they the non-deluxe versions?
Here's a link to another '69 Fremont CST that was just posted on the Craigslist finds thread that was built 5144 before mine that also lacks the later CST options. Doesn't help with build date though.
http://67-72chevytrucks.com/vboard/s...postcount=4335
https://portland.craigslist.org/clk/...585642903.html