Where to source nylon dogbone and cup connectors for drive shafts

[RazorAntilles]

I've been searching for these for ages and have only come across options for RC ground vehicles; different places seem to be saying that these are no longer made or that the metal RC vehicle versions are the better choice.

Anyone have any idea if these are still being made and where to get them?

[Subculture]

I believe the nylon dogbone couplers were made by Dumas, and they’ve gone under I believe. You may be able to source some new old stock. Not sure if another company will pick up the production of these couplers, AFAIK no one else did quite the same product, although there are metal couplings available, and plenty of availability of cardan style couplings