The AIM shows location of 2 trunk decals. One is the jack the other is labeled a caution decal that appears to be the differential. The only aftermarket diff decals I've found are for position rear ends. We're there also decal for non posi?
There is only a jacking decal for non-posi cars which was placed in the center.
This link has a lot of trunk lid pictures. My original lid is in reply #16 and you can see the edge of the jack instructions. This is on 67 non-posi rear Camaro.
http://www.camaros.org/forum/index.php?topic=12390.0
Mike