I still have one I am saving for a project, but there used to be couple of years ago a couple of places still marketing the stuff. I believe Dynamic Transmissions would sell the components for them. Can't remember name of other vendor . If I do I will post it. They do have their limitations due to input shaft strength and violence of the gear change from lack of fluid coupling of the converter. I used to love running mine in my old injected BB 55' chevy.