Hello, I have a 1992 Chris Craft with a 5.7 OMC. I noticed some stains on the lowest portion of the port side exhaust just before it enters the stern drive. I could see that water was weeping in from the bottom of the lowest rubber coupling which I guess is one of the two ways to allow the engine to torque and vibrate. After I pulled the boat I discovered that one of the worm clamps was slipping and I thought.. that's it fixed with a new one. I then put the boat back in to discover the water now running in from the same spot. I pulled the boat again and left it to the marina to look at but now I am feeling like I can tackle the job myself if it is as simple as a stressed or distorted boot. So at last to my question(s).....<br />Is this part failing normal with age ?<br />Should I replace both sides by default ?<br />Are there any tips for doing this job ?<br /><br />Guess I'm still kinda nervous as the wrong move could make a whole difference to my summer boating !<br /><br />Thanks for any advice