Yeah I've sent multiple emails to every rebuilder I could find. Hoping I couThose are normally sold with the whole center section. You could try some companies that rebuild turbos.
Thanks! I found several online from china but takes a while to get here.Found lots of back plates for that turbo model but not for the 721021. All seem to be coming from overseas. Might contact this one an see if they have it. Turbo Back Plate Replacement,Internal Turbo Parts Suppliers -Refoneturbo