I disassembled the dryer with the video instructions you provided. Sure enough one of the roller bearings was completely gone and the roller was just flopping loose and the belt came off the motor and tensioner, flipping the motor shut off switch. I got back online with you and order a new roller and decided to replace the belt since has been on there for around 7 years. When I got the parts a couple of days later, I reviewed your assembly video again and put the dryer back together, and started it up. The dryer has not sounded that smooth since it was brand new. Job completed. No more trips to the laundry to dry clothes. Thank you AppliancePartsPros.com