Decode Differential Markings

[Swinger340Canuc]

I don't know if anyone has seen these markings before and know what they might say, they were on my 8 3/4-489 centre, 1972 Dart Swinger Special. The more I look at them the weirder they look!:banghead:

 

[Rocky_JS]

they are inspection stamps/ markings. what they mean is someone looked to verify certain things about them before installation or after whichever is relevant.

 

[Swinger340Canuc]

Thanks Rocky, I was hoping to maybe reproduce them and maybe someone has a better example of what they should look like. It looks like maybe an 8,Y, and a 2, can't really tell.

 

[Rocky_JS]

that is exactly what a lot of detail restorers do.

It looks like a smeared rubber stamped 8Y2 probably BY2. Two people with the initials BY's so he got a 2 added to his stamp? I am not sure what the one above it is though?

here are some examples of inspection marks. there is a similar type on a pictured differential.
http://www.mmcdetroit.com/ICCA/References/Inspection_Marks/

specifically look this one it has the other weird mark also. So I would say part of the stamp edge
http://www.mmcdetroit.com/ICCA/References/Inspection_Marks/image_23.html

 

[Swinger340Canuc]

Great source, I shall check it out, thanks Rocky.

 

[65dartcharger]

I have the ICCA restoration guide. I can check it up when I get home. I have pictures of all the stamps and splots!