I need a shop for custom axle work.

You can also try:

The Gear Shop
15709 Paramount Blvd
Paramount, CA 90273
Gary:562-634-1396

The Gear Shop has been there for years.

Gary is very low key but he will ask a lot of questions.

I just got my 8-3/4 back. backlash, housing trueness, and bearings ect...

You will need to bring him the differential.

Doug