Just checked passenger side door, came from the same donor car, and it has 2 different date codes too.
Nobody else come across this?

Try this:

The bracket in the photos Danny posted seems too short.

The '69 AIM calls up hole for Z22 Rally Sport as 1.00" diameter (UPC 0, sheet A9), and cowl induction wiring hole as 0.75" diameter (UPC ZL2, sheet A5).

I was stripping down a used driver's side door from a '69 today, when I noticed that the inner panel of the door shell had 2 different date codes stamped on it. I've added some photos, showing the location of the 2 stamps (circled in red) and each of the two date stamps. How come there is a gap of several weeks (from week '39' to '43') between the stamps? The 'H39 1' stamp is upright and the 'H43' is upside-down.

Dave, I posted a reply to your other thread over at TC, but I was under the impression that the factory spoilers were ABS, rather than fiberglass.

Here's a 1969 dated BB timing cover, currently listed on ebay: http://www.ebay.com/itm/290976608998
Seems to follow the same date code format as the SB covers I have, if the stamp is '31 69'. If the '3' was upside-down, instead of the '1', then the date code would be '69 13' which is possible, but has anyone ever seen the year stamped first? (Date code images below)

Certain exterior colors caused an exception to the rocker blackout; have a look at the "Body Sill Color Exceptions" table in the link below, a code 67 Burgundy car would not have had the black-painted rockers.
http://www.camaros.org/exterior.shtml#BlackoutPaint

Edit: William posted while I was (slowly) typing the above reply....

I agree the AIM is vague as to correct placement! I made sure to take many photos of the emblem position before removing it from the grille on my car.

Here are all the pics of my car http://s202.photobucket.com/albums/aa290/vannuysz28/ there are a lot of them.....

Was that once Van's car?

I've never come across an electronic version of it either, but I'm old school when it comes to books and prefer to be able to hold the book in my hands..... That said, the PDF version is handy for printing out just the bit you need for the task in hand, plus you can enlarge those small diagrams to properly see them!

Funny how few of these cars have the grille emblem correctly positioned.....

Wheels painted body color 
Relisted with start bid of $50k, B.I.N of $100k:
http://cgi.ebay.com/ebaymotors/281165679606

That is a bargain, assuming all numbers checked out ok.....

John, great info (as always). Were any of those reference points physically transferred onto the car during assembly? Otherwise, how were emblems and other items positioned to the AIM dimensions by the line workers?
(I do understand that the AIM is an engineering document, and not all details were for the worker's use/benefit).