The specifics of converting an E Body 8 3/4 rear end housing to an A body 8 3/4 rear end houseing

I can narrow your rear end to A body length and specs if that’s what you’re looking for. I’m in San Jose, and have narrowed dozens of 8 3/4 and 8.8 rear ends. If you can weld and have a jig you can do it yourself also.