(Login stuart40a) Forum Moderator Posted Aug 29, 2008 12:26 AM
You do not have it assembled correctly.
If it is on the bench it does not matter what gear is selected the output and input shafts should turn.
The output shaft will a bit stiffer in one direction vs the other.
The input shaft can be turned by hand.
You have a negative end clearance problem or a clutch plate has slipped out of position.