Narrowing a 8 3/4 diff.

@crackedback I appreciate the feedback. Where does the extra length come from on a big bolt pattern set up? I have 11" brake set up from the C body, I intend to use. I was just going to do the math backwards from what a stock set up is minus the difference and order axles. I would like to know what you recommend, should I build up the rear brake set up than measure? Or measure the old axles bearing stack up and figure it out somehow that way?

I suppose in hindsight I would have done a few things different with welding in the ends, but here I am. I inspect welds daily and professional welders fail everyday, Not they would've messed these welds up. I chalk mine up to being amateur and will learn from it.

Thanks again for the feedback.