Tore apart easily enough. It took me a while to realize my dryer opens from the bottom front, then the top front, and lastly the top. After that, it was easy enough to diagnose a faulting idler pulley. It would barely turn at all even with me forcing it. Frozen pulley had chewed up the pulley axel and belt pretty badly. Ordered new parts (and rollers just in case). Parts arrived quickly and dryer now runs great.