8 3/4 identification help

Johnny Mac said
1820657 I see it now fellas. Thanks!!!

So usable for a new sure grip build? Or does the entire Center section need to go, and just the housing is worth anything?

I have sold the early housing at swap meets to guys wanting the correct pumpkin for their year car.
741s came in 383 & 440 cars.
I personally prefer the 742 as it has the largest inner pinion bearing and no crush sleave.

What ratio is your 657?