Washer Makes a loud Bang when Filling/Draining

Hello,
I have a Kenmore 80 series washer that is working great. The only issue is that it has started to make a loud bang right before it fills or drains. I think it could be the plug for the drain? Maybe its sticking? Hoping this is an easy fix with some lubrication or something. Dont want it to become a problem. Any insight would be appreciated.

THank you.

Need the model number. Assume this is a direct drive design. There is no drain plug. Post a video to youtube so we can hear it.

Eric