Is the purpose of the seal in front of (engine side) the gimbal bearing intended to minimize water flow into the boat, in case of a major u-joint bellows failure? If not it would seem that you would be better off without it, as a slow leaking bellows would keep the area around the u-joint full of water all the time.<br /><br />DougV><br /><br />Mercruiser alpha one 140 hp 1986 model