yeah, I did some reading around on the forum last night and it seems like a couple of guys just disconnected the heater wire and sealed off the connection. I went to Auotzone and bought a box of o-rings and am going to take a shot at it one more time. If I cant get it sealed up, I may just plug it up like you say, as I live in Arizona, and I never even bothered to fix the cab heat in my other truck since Ive been here