Hey guys, I need some input from you. I can't push back the automatic adjuster plate on my 1993 w2500 rear brakes so as to realease them. I have tried screw drivers, thin flat bars that I have made with a slight curve, welding rod, etc. Can't get the star to free up and turn in the direction it needs to to release the brake shoes. What am I doing wrong. Following diagram and direstions in the owners manuel. I would appreciate any input at all. Thank You in advance. Maggiesman