So, RPM rear axle hubs are discontinued. a few guys on the FB pages reached out to RPM asking if they would get consider making them again. time went by with no response so I contacted RPM and this is the call i received back today:
UPDATE: Natalia from RPM called me back. she needs 10 sets confirmed as sold and they will get the project going. Natalia told me to have anyone interested to please call her at 928-771-9363. She will be working next week. if by chance she does not answer the phone she said to leave a message with return contact info. no pricing yet. that will get one once the shop is back from the Holiday shutdown. i'd assume close to what the other RPM rear hubs are currently...or cheaper depending on quantity.
this is what they look like:
