I have a 1969 fiberform, 17 ft boat with an inboard mercruiser, gm inline six, 165, the stern drive for it is gone, yeah i am still trying to figure that one out. the only serial numbers i have for it are from the valve cover-3079851 and at the back of the engine-2915863, i have had the boat for only a few days now, and my wife is getting more pissed by the day because i bought a boat and the stern drive and parts came up missing from the inside of the boat. PLEASE HELP