67 Barracuda Formula S 451 - clutch shatter

Since you've gone through so much already, I take it you've indicated your bellhousing in.
How was the fit for the trans input shaft to the crank bushing?


Have you tried it with the sway bar disconnected?

Yes, bellhousing is dialed in to specs.
The input shaft to crank bushing fit has about 0.2 mm = 0,00787402 inch - not sure if that is ok. Bushing is brand new. Input shaft has same diameter on the bushing area as on the other areas.

We did not disconnect the sway bar yet - good idea - I think as the car tries to twist to the right, the sway bar changes the spring rate at acceleration. But it should work with sway bar in the end ....