Joe, I am really scratching my head here. I could *swear* the front output seal is installed from the outside of the case (i.e. you don't have to crack the case to replace it), but it has been a few years since I have had to mess with it.

As far as resealing the case, for anyone reading, throw away that awful blue silicone sealant. It is made by the devil. I am a reformed blue goo user and I have been blue goo free for several years. Get the grey, it is much better, it sticks better and it does not have quite the tendency to squeeze out and then peel off and then cause havoc in other locations.

Good Luck,
Michael