Dryer was making squealing noises like a slipping belt. I removed the drum and didn't find any obvious problems with the rollers or idler pulley. I oiled the bearings on the rollers and idler, but after I reassembled the dryer, the motor ran but drum did not turn. When I disassembled it I found the pulley had come completely off the motor and its threads were stripped. I found I could not buy the pulley alone and thought I might try repairing with JB Weld. That repair failed after about 10 seconds of running so I ordered the new motor/pulley. To replace the motor you remove the screws from the blower housing cover and the two screws holding the motor/blower to the floor of the dryer. Then you can disconnect the wiring harness and pull the assembly out to work on it. You have to remove the blower wheel using a 7/8 socket holding the motor shaft with pliers. Then take blower housing off the motor by removing 3 screws. Use a big flat screwdriver to remove the clips that hold down the motor. I struggled a little bit with this. Put the motor assembly onto the floor or solid surface, hook the screwdriver into the slot on the clip and push down and out. If one side of the clip doesn't want to come off, put the screwdriver on the other side and try that. Reassembly of the new motor is probably easier than removal. Put one side of the clip on, then put the screwdriver on the other side and rap it with the heel of your hand. It should snap back on pretty easily.