I get brown streaks on some of the clothes coming out of the dryer. I have replaced the upper and lower felt seals a couple of times. I also replaced the rear bearing due to it being worn. If I run my fingers on the inside , the drum is sitting flush on the top felt seal, but continuing around and to the bottom seal, there seems to be a much larger gap. Could this be where the clothes are tumbling by and getting the brown stain or should I be looking elsewhere? I order my parts from applianceproparts and the lower ( white felt ) seal is visually thinner than the upper ( grey felt) seal . What is controlling this gap .