I used the web site to figure out the most likely causes for the drum not turning. I watched the web site's videos to see what I would have to do and thought it wasn't too bad; something a rookie could do. Ordered the parts (belt and idler arm) and followed the directions from the videos. Mostly a bunch of screws/bolts to remove with a couple in difficult places. (my dryer isn't full sized) There were some electrical connections to take apart. As i disassembled it, I took pictures of where everything was. Put in the belt and idler arm as the videos showed (really appreciate the part that showed how the belt went through the idler arm. Would not have guessed); buttoned it back up (referring to pictures often) and it worked. Still working a couple of weeks later.