8 3/4 to Dana 60

If I am looking at these charts correctly, an A body 8.75 with small BP brakes is 57 1/8 vs. 57 13/16 with LBP axles and brakes? That would mean to build a Dana 60 using LBP brakes, to end up at the same total width as my current setup, the new housing would have to be 11/16 narrower total, than my current A body 8.75 housing at 52 5/8"?

I had originally planned to reuse my SBP brakes (redrilled to LBP) to save dollars and weight, after reading comments from knowledgeable members, I am reconsidering. I don't want to go through the process and cost of a custom build only to pigeon hole myself on limited supply brakes. Should one consider rear discs on a street car, I have to buy complete rear brake assemblies anyway?

Perhaps @72bluNblu would chime in?

I have to get this right, I have offset hangers and wheels that have been made accordingly, to maximize tire size in the well known restricted 69 Dart wheelwell.

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