Originally Posted by Gary Lewis

What I meant was that you should be able to spin the input shaft in neutral without the output shaft turning. Or vice versa. It is possible to get the shifter rails out of sync on the NP435 such that you are in two gears at the same time. If you still have the shift lever out the use a screwdriver or somesuch to move the gears around until you get both sides in neutral. If the lever is in you have to take it out again.