Product review (4 stars): Dryer Rear Seal
We were told that the repair for our dryer would be north of $150 dollars with parts and labor, the issue being the heating element.  Brown stains were also appearing on our clothing.  The repairman would not or could not offer an explanation as to the reason for the brown stains.  Through a bit of research, we determined that the issue was most probably the rear seal on the drum, so we ordered it and the heating element from Amazon.  The repairs took about half and hour and we saved more than $100.