Anyone running a 904 behind a 340?

Jadaharabi said

In the 727 the sprag is pressed into the aluminum case then held in by a set screw.
In the 904 the sprag is riveted in to the case.

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What really secures the 727 sprag in the trans is its serrated OD. All those little teeth biting into the alloy.
That set screw will not stop the sprag from spinning because it goes into a slot which is machined all the way around the OD of the sprag. All it's going to do is stop the sprag migrating forward in the case..