The shock absorber codes were included in the Chassis Broadcast Copy (see 1967 example attached - box 224 for the front - LG, and boxes 245 and 247 for the rear - LH), and yes, there were stickers applied to the shocks to make them easier to find for the guys on the production line. I don't remember seeing a chart or list of the codes, although Kurt may have some since he's got a ton of CBC's in his collection!
Ed