I have a 2005 Chaparral with a 3.0 Volvo Penta engine. I recently just noticed when I turn the steering I hear a knocking noise coming from the rear. I also hear this noise when I trim up or down. I have heard to replace U-Joint and Gimbal bearing. I want to make sure before pulling off the outboard if there is anything else it could be besides these two. Thank you in advance for any help.