904 converter question

Hi all

I just bought a new torque converter, and the stator looks that does not match with the reaction shaft. It have the same splines number, but the stator in the converter is much bigger than the shaft, the stator spins freely inside the converter. Is it normal?
I took a picture that shows the stator splines have the same size as the "tube" that turns the oil pump.

I just pulled this torque converter out of 904 '69 Barracuda. I'm doing a 2004R swap and removed the 904 just a few days ago so the converter is fresh. You can compare it to what you have.

Treblig