Loud noise when running

I was teaching my associate how to do this repair so I showed him how to take off the top of the dryer. Then I showed him how to replace the drum slides. I had him clean out the dryer since we had it apart, and I also showed him how to remove the drum and then reinstall it. This was a very easy repair, and he learned a lot that he otherwise would not have known. Thanks for getting the parts to me so quickly. Rob from Clarks Summit.