Tightness of drive train
 

Hi Guys

I'm trying to help a mate with he's new impreza.
We have the car up on the lift changed clutch n flywheel, It is getting gear fine and cluch bite is fine.
Just wondering how tight should the prop shaft be to rotate, need a prye bar to rotate it now.
he is a little wary of driving it in case of doing harm.

Thanks