slack adjuster

My car on the road to go outside to play back was broken at the moment I do not know what to do? I would to a friend called to tell friends my car now something bad on the road, friends listened to my story let me in the way of her, she will help me repair my car, listening to a friend said I also promised to wait for friends, not a friend to friend. A bad place in my car from her car into a slack adjuster to help me repair my car for a while my car friends were repaired, after the car repaired I asked her friends inside how have slack adjuster? A friend told me that when she went to the repair shop clerk introduced to her slack adjuster.