Mine are a bit different
My sanders are the "Professional' model and are taller and have a dust port. The rubber towers don't have an indentation in the tops AND two of them are sheared off. Sorry.
It may be worth a try adhering them on with crazy glue or other adhesive, but the vibration is pretty extreme, and the durometer of the rubber has probably changed over the years and has lost it's elasticity.... I donno?
The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
Last edited by woodnthings; 01-23-2018 at 12:32 PM.