Is there a good source for new spacer rings, or will I need to stop by a dealership for those? Is there a more proper name for those?

I had to modify mine a bit to install those GSP axles so want to put in new ones when I put in the rebuilt axles.

__________________
84 300D 255K "Mr B" ("Mr Becker")
79 300D 265K "Mrs B"
85 300TD 175K "Mali" (Sold)
74 Ford F-100 74K "Bonnie" (Sold)
67 Jeepster Commando (Sold)