Replaced drum support rollers, tumbler bearings, belt, but noise persisted. Determined it was a bad bearing in the motor and tried spraying WD 40 wherever possible along the shaft, but still didn't eliminate noise. Finally replaced motor and followed instructions carefully, matching color of wires to numbers on terminals. Needed to cut 2 existing connections and crimp on new connectors supplied with motor. Really need snap ring pliers and crimping tool to properly do this job. As stated in other reviews, taking brackets off to remove motor and removing motor pulley were not that easy. Hammering hexallen wrench didn't budge the set screw. Had to actually use a 12 inch cheater bar on the hexallen wrench to loosen set screw. To replace belt, I found it easiest to loop belt through the pulleys first and lay the belt in the back of the dryer, lay the drum inside but not on the rollers, loop the belt over the drum, and then lift the drum onto the support rollers to add the tension to the belt.