Our 20 year+ Kenmore large capacity electric dryer is leaving marks on light clothing. I think I have it narrowed down to the area where the drum and the seal on the rear of the drum come together. The marks, which appear to be rust and come out in a subsequent wash, are located on the rear bulkhead adjacent to the seal.

I have replaced the drive belt around the drum, but have not replaced the ring bearing (seal around front of drum) nor the rear drum seal. Before I attempt to order parts, I want to know if anyone else has had similar marks appearing on clothes and whether you can attribute them to worn seals or something else.

Thanks.