Rear end identification

IMG_1485.JPG

Can anyone tell me what rear end this is?

Without knowing what it came from, all I can say it is likely one of the many IHC made rears. R30?
Can't read any of the casting numbers.
edit: was able to blow up enough to read,
Either the RA15 or RA 20 take that casting number. Ratio could be anything between 4.30 to 6.17

If what you really want to know is: will parts from another maker fit (Dana or someone else) the answer is no. I was designed and built for/by IHC. I have no idea if they farmed out the gear hobbing or did the machining "in house". None of that matters when it comes to gear-sets that can be used.
Just like Mack, IHC designed and built a lot of the rears used in their trucks.

Speaking of- - - - -

People used to stop and ask me if they could take a picture of my dog in the driver seat of my semi. He looked like he was driving.