The gimbal bearing was stuck and would not move even with the best of pullers on my 1989 omc .It was the factory bearing.I went and purchased a new bearing and measured the thickness of it.I then took a 3/16 drill bit and slid a rubber hose over it leaving only the bearing thickness exposed so I would not drill to deep.I drilled holes in the outer edge of the bearing each hole being as close as possible. The bearing then collapsed when I pulled on it with a slide hammer.<br />Tony