I am trying to find the best place to buy a new set of stern drive boots for a 1987 mercruiser. I might be calling them by the wrong name, but that's what the mechanic called them. They are the black rubber tubes that keep the water from entering the inboard part of the engine, I believe. I think they're set of three or four of them, that need to be replaced. If you know of a specific name that they are called and/or a place where I can find them, please let me know, THANKS!