if you mean the aluminum insert that goes in the bottom on the mast, then yes, just drill out the rivets and replace. not quite as easy as it sounds, i actually had to cut 3/16" off the bottom of the mast extrusion to gain new ground for better holes. my advice, silicon the mast base, stick it in and let it dry. then completely redrill all new holes for the rivets. if the holes in your mast are ok you may not have to do this, but i tried using the old holes and couldn't get the base to seat right.