i have an 87 wellcraft with a mercruiser inboard 4 cyl. i was told it had the stock outdrive on it, but i just saw something online and now im confused. the out drive says SE106 sterndrive on it. is that mercruiser? did this boat come with this outdrive? and are they the same? i just ordered oil seals for it but i baught them for an alpha 1 outdrive, will they be the same? thanx for any help