I watched the do it your self video. I then went to work on the dryer by taking it apart. I put all of the screws in a magnetic dish so I would not lose the screws, keeping in mind which screws were different and keeping them separate. Then, I removed all four of the rollers. The four new rollers were bolted back on. I also took pictures of the process so I would not be confused about putting everything back together. I would suggest replacing all four rollers because of the labor involved in taking the dryer apart. While everything was apart, I used my shop vici to vacuum the dryer out. There was quite a bit of lint on the motor and around the igniter. It's a wonder that the machine didn't catch on fire. My LG dryer is ten years old and has had a lot of use.