I found the leak on my 89 comp. It was leaking through the prop shaft. I loosened the hose clamps on the bellow and slid it up the shaft.the bellow was clamped to the shaft log and to the large collar attatched to the shaft. There is a graphite bushing inside the bellow but has probly 1/4 inch oversized. No packing nut! On a 89 comp did it have a packing nut or another type of seal?