If the problem with your Whirlpool 27 inch electric dryer is not tumbling the clothes properly and is making rattling noises. The problem could be a loose or broken drum baffle.
The drum baffles are made of plastic and are attached to the tumbler to stir and separate the clothes when the drum tumbles.
Sometimes they become loose or even break. The best way to learn how to check and replace them is by seeing video on how is done.
To see how to check & replace the drum baffles in a Whirlpool 27 inch electric dryer, view the video below
Below are the links to the parts needed for this repair.