My boat has a vibration when the drive is turned or tilted up. I asked what could be causing it in this forum and everyone agreed with what I was thinking; it had to be the u-joints. Well, I replaced the u-joints and raw water pump yesterday. The u-joints looked new and felt fine, but I replaced them anyway. I also check the shaft and gimbal bearings and they're in great shape. I took the boat out for a quick test run and the vibration is still there. Any ideas?
