Help Identifying Ring and Pinion

[70_440-6Cuda]

Hi all, got my old ring and pinion back and can't seem to track down what I have here, any help with identification is appreciated.  I believe it is 3.54 gear, but just want to confirm.  They worth anything?  I was thinking I might hold on to them just in case I want to swap back from 4.10

[1970 cuda Joe]

They are what you're thinking. Divide 13 into 46....Joe

[Skdmark]

They are what you're thinking. Divide 13 into 46....Joe

 

[70_440-6Cuda]

I was wondering more about the markings, my google search didn't turn up much, not that it really matters, was just curious

[moonshine_mike]

I recognize the pinion as a possible period correct Dana 60 because the markings and serial number is very close to mine (3.54---34156). But I don't recognize the ring as being a the matched part or even as a Dana although it does have the right amount of teeth. Sometimes there is a stamping on the pinion head that is also stamped on the ring edge that match, confirming the pair as matched. Could this be an aftermarket ring? I've added a picture of my 3.54 Dana ring markings.