I'm new to boating(I've been out 3 times). When I shift into forward or reverse I hear bad klunking sounds. Not much of a problem when I just ram it and go but its pretty bad easing in gear such as loading the boat which for me is still like parallel parking LOL.<br />I changed the lower unit lube before I ran the boat. I used super tech sae 80W-90 Lower Unit Gear Lubricant. I've checked for shavings and see none. What should I do now?