8 3/4 Rearend Question

I would check with Moser engineering I talked to them about doing one for me and the cost to narrow the housing and re-spline my C body axles was under 300. I don't think that included spring perches and shipping was on top. If you shorten your own housing or have it done you can set the width to use the standard 10 or 11 brakes and will be big bolt pattern with no changes.