Frigidaire Front Load Dryer

Reach inside the drum and feel the drum inserts to see if one of those has come loose. Sometimes you can have one of those screws back out and hit something on the inside. Could also be a bent drum (doubtful unless its been overloaded or abused real bad) a front slide is bad (would probably cause squeeking or grinding noise) or rear bering (also should squeek or grind). Good Luck!!! Jim