Replacing the RDU (Rear Differential Unit) - PRogramming help

[kasdoon]

2018 Ford Edge SEL AWD 3.5l  (non-Turbo)  110k miles

I have ti replace my Read Differential (RDU), I am trying to find a replacement (Ford does not have them) from e-bay or other sources.   However there are so many China ones and ones that list every part number as interchangeable it is a freaking nightmare.

I have found a couple where the numbers are close but not the same

My Numbers are : CV6W 4B025  DF / S-162-A from the tags. (see images)  There is also an etched number  on the coupler CV6W 4600 BA

Most that I find, the second numbers are S-15n or S-164-A

I have read that if the S- number is not the same the vehicle needs to be reprogrammed?  Is that true, or are there ones that are direct interchanges without programming to mine, and what are they?

I see that Forscan could be used, however, you can no longer get the Windows or Android version, so is there an alternative?

Thanks in advance an I really appreciate the assists!

[Dashvortex]

Kasdoon, have you found any more info on part numbers that interchange? I'm in the same situation with the same part # on my RDU and not having much luck finding one at a reasonable price.  The interchange info I'm getting from salvage yards IIRC looks like the only compatible years are 2014-2018 on the non turbo models only. Not sure why since the chinese ones show compatibility with a much wider range but have terrible reviews for being bad out of the box and most likely not having the numbers provided to program the correct clutch profile.  I'm considering taking mine apart and finding a cheap salvage yard unit and seeing if I can piece one back together or rebuild it. Please let me know if you've found any good interchange info.