squeeking/ grinding really bad

First I pryed up the top cover then opened the access cover on the rear to remove the belt from the drum. Next I removed the front of the dryer to have access to remove the drum. I then removed the 3 screws that hold the drum to the rear drum bearing assembly and pulled the drum through the front of the dryer. I then removed the bearing and proceded to remove the ground ball and reassembled in reverse steps.