I replaced the idler pulley and blower wheel. It was pretty simple all I did was follow the help video. Although I did have trouble removing the clamp holding the motor in place. I am 70 years old and a woman so if I can do it anyone can. One thing though be smarter then me and take the lint trap shoot off and check it first. Mine was spool full of lint. I probably didn't need to change the blower wheel or Idler pulley. Oh well it was really easy. The dryer works better then ever.