[DeadheadNM]

Anything I can do to facilitate a reproduction please let me know. Tiny details like this I’m all about. Thanks for taking the time to post pics.

Here’s an example of what the posi tag would look like for a 12 bolt on a half ton truck for at least 71-72 and probably earlier. Note the coarse plumbing threads and shape of the bolt - totally different design than found on an open diff rear, which use a finer thread and have a recessed slot to accommodate a socket wrench.