Sorry dumb magnum question.

Working with my first magnum engine. Bought a '99 5.9 from a ram truck.
Starting to disassemble to do the manifold and pan swap.

I'm keeping the whole serpentine belt system, and was going to use the magnum fan and clutch.
Shouldn't I be able to grab the fan and turn it by hand? Right now if I grab the fan and try to turn it, it will actually turn the engine over. With my old '71 clutch fan you can rotate it.

Is this clutch bad?