I have a 2008 typhoon that after it sits on the lift for a week or more the first few times its taken out it will vibrate thru what appears to be the V-drive assembly, especially if the boat is loaded up(i.e. pulling tubers), but then after the first few times its been taken out it goes away and i have no problem with it. I'm suspecting it is the propeller shaft dripless seal, does this need lubrication? All fluid levels are fine the Walter V-drive and transmission fluid are right to spec. Any ideas,
Thanks