Rebuild questions on a 74 8.75SG diff

SMCARNUT said
DR Diff / Cass is the place to start. We buy all our 8 3/4 stuff from him.
Also, if it is a 489 case get a crush sleeve eliminator when you build the rear end.

Thanks for the reply. I have spoken to them and it looks like I'll be doing more of that. Cheers!