20+ years of "Building 904/727 for drag racing use"

Sure. If the assumption is that the 30-element dog bone style sprag is going to handle a lot more power, say in a big tire, tube chassis car, it's not. So, to say it doesn't work, may have been a slight error on my part. It may work in your (just an example) 600hp, small tire drag car--just the same as the 10 element OEM 904 sprag. I know who developed and co-developed that sprag, and it is not my intention to mud-drag or smear those folks. It is my intention to advise people of the possibility of failure if purchasing that sprag for a certain application.


I am aware of this.

One of the major manufacturers of 300m shafts will not sell a 300m input without the 300m output for a 904 or 727, FYI.
Yes I know who that is.