There is supposed to be a tight spot, just not too tight. Finding it is one of the steps you take when properly adjusting a manual box. Read the Shop Manual section on adjusting a manual box.
The correct way is to adjust the worm gear first, then the sector shaft. Because the box should be removed to adjust, or at least disconnecting the pitman arm, many people get lazy take a 'short cut' and only adjust the sector on top of the box. This 'short cut' will get the free play out temporarily but eventually destroys the box.