I think Mark C has posted other places that the Change over for the stripe for the 68 was mid Dec 1967.
The reason I post this is because I just received some (Vintage?) photo's of My 12E LOS 1968 SS/RS 396, dated Jul 70 from the third owner and I was Very pleasantly surprised to find that my car had the stripe down the door and matches my restoration (PAINT JOB) I had done in 1987.
I plan on sending copies of the photos to Bruce so he can add then to my members rides feature as a 'rest' of the story item.
P.S. it includes photos of the "BLACK" back panel, hint, hint,,,,,,
V/R
Jim