Noise when dryer turned on,during dryer, and for a bit after it stopped

I followed the other descriptions as to parts removal. But on my model I could not remove the lint filter housing by removing the four screws inside the drum. One screw wasn't visible nor accessible since it faced inside the dryer body. In order to remove it I had to take off the two side brackets that held the drum in place. Removing the side brackets removed the housing (I didn't actually need to remove the screws inside the drum) and enabled me to complete the installation. The drum did come loose slightly but was easily aligned when I put everything back together. Also the blower wheel, besides the wheel clamp, is held on with a special clip on the spindle that I had to pry off with a screwdriver and pliers. The whole process was a bit more complicated but not that difficult.