An assembly for adjusting a cable that includes a locking sleeve and an adapter that is connected to the cable. The adapter includes male and female-threaded portions that are coupled together. The locking sleeve is configured to be displaced between engagement and disengagement positions. When in the engagement position, securing devices of the male and female-threaded portions engage inner sections of the locking sleeve in a manner that prevents the male and female-threaded portions from being rotated relative to each other, thereby preventing a change in the length of the adapter so as to prevent an adjustment of the cable. When the cable is to be adjusted, the locking sleeve is displaced to disengagement position such that the securing device of either the male or female-threaded portion is disengaged from the locking sleeve, thereby allowing rotation of the male or female-threaded portions relative to each other.