Loud squeaky that turned into a rattling noise

I watched your video that showed me how to remove the top then the face of the dryer. I then removed the drum and belt,after which I could then remove the support wheels and the belt tension wheel.I replaced the support wheels and tension wheel,the hardest part was removing the little plastic locking keepers that hold the support wheels in place. After that I was able to reinstall the drum with the new belt and reinstall the face and top of the dryer. My 15 year old dryer works great just like new. Thanks