How do you remove the cam inside the agitator? The "dogs" inside the cam are worn and do not catch anymore on the teeth inside the agitator. I have found the part I need. I removed the bolt inside the agitator and completely removed the agitator from the washer. However, I can't get the old plastic agitator cam part out. Is there a trick to this? I have tried pulling, turning, and even trying to pry the little flanges that hold it on from it. I cannot get it out. Any help is appreciated.