8 3/4 identification

I was steering him to look at the driver side. That unit looks identical to the 741, and is the unit in my 56' savoy. The difference between the two is the axles shafts.
I can't Install a newer 741 in my 56'. I saw the numbers, but I blame totally my not seeing them on my shitty glasses.(I'm hoping you all believe that) I am dumping it all, and Installing a 67' 8 3/4 in the Savoy. No more crappy axles with nuts on them, and better brakes.