Dryer made noises like metal on metal grinding

Unplugged the dryer then popped the top off and tilted it back, exposing the drum. Then using a flat bladed screw driver, removed the two sheet metal screws holding the front panel on. Once the front panel was removed, I pulled the drum off, exposing the motor and worn pulley. I removed the pulley arm, then removed the pulley. The bearings were totally gone, so I replaced it with a new pulley, replaced the belt and the front drum glides, since they were obviously worn. While it was apart, I cleaned out the interior with a shop vac, which greatly improved the efficiency of the dryer.