Red, what I should have said is that I cracked the glass while trying to seat it the last 3/8 of an inch. It's not really seated all the way around and that's why it leaks. My truck is a 56, so will it have the setup you described with the drain holes and the plenums? I can see the drain holes because my trim is missing. I'm going to have to probe around in there and see what's what.