I'm currently attempting to remove and replace the bearings in the lower c drive however I'm having trouble getting the 'trumpet' off. I have the same c drive as you and have removed the upper unit by removing the four bolts which connect the square aluminum upper unit with the trumpet, was I supposed to do this? I have also loosened the hose clamps on the large rubber boots. Does the large rubber boots connecting the trumpet with the hull also come off with the upper unit?
Any help would be greatly appreciated.