Hey all, I have a question reguarding the tirm on my boat. It's a 3.8 chevy OMC. What it is looks like a 3" diameter rubber donut. It goes around the cylinder to tilt the motor/drive. How difficult is it to change? Does the motor have to be lifted up? Part of the donut is torn up, but not completely missing. I just don't want to be stranded on the lake. <br /><br />Curley 