Can you ID this NOS housing vent?

[73charger340]

What car/truck does this housing vent fit? I have a couple of them. I assume it is a axle housing vent . I`m not sure if the part number on the paper is a Mopar part number. Thanks for any help.

 

[pnora]

Most likely a 8 3/4. No mopar part numbers on that tag.

 

[gtx6970]

As far as I know it all mopar rear axles . from early 60s to late 70s I think

 

[73charger340]

I used my bolt gauge and it measures at 7/16

 

[73charger340]

Thanks for the info.