Product review (5 stars): If you've gotten the drum out of your dryer then ...
If you've gotten the drum out of your dryer then replacing the seal is a slam dunk. Simply pull the old liner off the drum, clean up the old glue (I used a Dremel tool with a small wire wheel brush), then glue the the new seal into place. You'll need to pre-stretch the seal over the drum prior to gluing, once in place I secured the seal with clothes pins and removed a 1/4 section at a time to apply the glue. Apply more glue than you think you'll need, the tube went further than I thought. Let the seal dry for an hour, then repeat on the other side. Remarkable improvement!