HEllo. I've gone to the trouble of completely removing the dash from my 93 Trooper in order to change the leaking heater core. Now, I'm looking at the white ductwork that houses it, and can't get it open. I really don't want to break anything, but with all the (visible) screws out, I can't seem to get it apart. The Chilton's book has no pics at all, and basically none of the dash diagrams matched my Trooper completely. I think I ended up using parts of each diagram to get it out. Any good sources for this? Thanks in advance!