You should have 1/8 to 1/4 round play but lock in both gears. The shift dog ratchets and only locks one direction. Did you adjust the shift shaft? If you don`t the shift into reverse can not be adjusted enough.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD