Your butts may be losing their leather.
|Looking from above|
Looking at these two images you will likely see the problem. It is relatively simple to resolve the loose leather, but be careful. Don't use so much glue that it soaks into the leather causing another "noise" problem once the glue had dried.
I like to use a 60 second curing super glue.
|60-90 Second Cure "Gorilla" brand|
Re-install part and your jacks won't be dragging along your butt leather improperly anymore!