https://www.ebay.com/itm/1969-COPO-Camaro-REAL-ORIGINAL-BE-code-12-Bolt-Differential-3894860NF/192609861011?epid=19016725969&hash=item2cd8713d93%3Ag%3AAkkAAOSwO1pbTmS4&_sacat=0&_nkw=copo+be&_from=R40&rt=nc&LH_TitleDesc=0%7C0
I believe this seller has been discussed at great lengths at this link and starts about halfway down the page.
https://www.yenko.net/forum/showthread.php?t=140881&page=2
- Warren
Cannot be real for that price.
Pic isn't great but stamping doesn't look right to me.
Ring gear shown is the standard 4.10 - not the COPO.
I have one example of a real axle , 0306 date. Dought this real, crappy picture of the stamp.