What plant is your car from?
This list the stripe colors by plant
http://chevellestuff.net/qd/70_drive_shaft_colors.htm
Examples In 1970, both LS5 & LS6 w/TH400 stripes are Green & Orange
Van Nuys 70 ss 396\350 m-21 11\d production date Pink-Orange-Orange
If you have the build sheet, it should have the colors listed. On the 1970 build sheet, it's listed in box 19 (prop shaft).