Fortunately, I do remember that the Manufacture Date on my sticker was 2-74. I do have the fender tag (but no broadcast sheet) and the SPD is 206. I know I'll never know what the actual MDH was on the sticker - no one knows what it should be now that the info is gone from the sticker. I just plan on putting something reasonable on there, like 020715 - as long as it's close. I would like to get the correct weights on the sticker, though - that's something I don't have to guess about, I can get it right. Your Challenger would probably be close to the same weights, but hopefully someone will post Cuda weights.