I am having trouble finding the part number for the adapter that goes from the large engine water hose to the gimbel water tube on this drive system. I wasn't able to get mine off without destroying while putting a bellows kit on. I've checked both the engine and sterndrive parts books at Mercury but all I have been able to find is the water tube shock bushing that holds the gimbel tube in the transom plate. The engine books shows all the water hoses but I can't find the adapter. This is a rubber busing that goes over the gimbel tube and then the engine water hose goes over the outside. Any ideas? thanks!