The stops are there so you do not over extend the shift on the transmission and mess it up.If they are too close to the shifter it will not go in gear right and may pop out,too far back you will shift too far,put
trans in 1st and loosen bolt with nut in front of the shifter move bolt away from shifter make sure it is all the way in 1st gear then move bolt towards shifter until it just touches it,then loosen it up maybe a 1/2 to full turn then tighten nut,should be a small gap between shifter and bolt maybe the thickness of a penny,then put can in 2nd and repeat procedure,then check 3rd make sure it goes all the way in gear,then 4th and 5th,hope this helps.