loud noise from dryer

Removed the front panel by removing two front screws. Removed screws from front panel holding tumbler drum. Cleaned interior with a vacuum cleaner. (dryer is at least 16 years old). Removed what was left of rivets on damaged glides with a drill, and cleaned area well. Attached new glides with rivet gun, and also applied glue to make glide and cork more secure. Replaced belts, and decided to reverse drum due to damage to drum from allowing glides to deteriorate to the point of putting scratches on the drum itself, allowing the new glides to rest on drum where there was no damage at all. This process was easy, and fast. We did make one error however, in not noticing that with our model, that there were TWO glides to be replaced. Luckily a local repair shop had one more glide so the job could be done the same day. The dryer sounds like it did when it was brand new. Very quiet! The comments from other home repairs helped very much in clairifying any possible errors. Fast delivery of parts, and the extra help was great. Thanks!