I have looked high & low to find out what the 2 tar like 3" wide strips that are on the exterior of the dryer drum. I've searched the service manual & the user manual. Although they clearly show it, it's not on the parts list, so I have no idea: if it's necessary, what it's called & where to get it. Reason why I ask is that my dryer was making a thumping noise. Before you ask if it's anything else (ie: belt, something loose, hole in drum, etc, etc). I have checked everything & no it's not any of them. I did turn on the dryer with the top off to make sure it was the strip (one came apart & was flapping). As the drum heated up the remaining portion of that one strip started to loose it's tackiness & started to come off & flap around (thus causing the thumping sound). Once I removed it & started it again, no thumping.
So my question is, does it act as a balancer, silencer, something else? If so, where do I buy it.