[Rick Cell]

The date code on my 70 SS glass reads as follows rear quarter glass LT door glass LT4 . What year month day do these letters and numbers stand for.

 

[Dave Birdwell]

The date would be March (L) 1970 (T)
Glass only had month and year coded.

 

[Rick Cell]

Dave, How did GM date their glass? I thought A was Jan and so on but i:m confused how those letters represent the year. My LS6 has a 4D productin date so I guess the LT works according to your method.