We have a GE Saversaver washer and dryer unit. The dryer spins but it grinds then stops. I have opened the unit and noticed that plastic bits on the glide drum are gone. I am just wondering if this is what would cause the grinding sound or should I be looking at a drive belt? I do plan on replacing the glide drum but just want to make one trip.

Model: WSM2700TEWWB
Serial: LV651268W