Mercury - Quicksilver 8M2005029 Gimbal Housing Seal Kit MerCruiser R/MR/Alpha/Bravo Series Marine Seal Components 8M2005029. Overview. Anyone who's owned a sterndrive long enough knows there are a few parts you don't mess around with-and the gimbal housing seals are near the top of that list. When they're fresh and tight, you can feel that confidence every time you shift into gear or ease your boat into a tight marina slip. The Quicksilver 8M2005029 Gimbal Housing Seal Kit gives you that peace o