Who here has replaced their heater core themselves? I'm having one helluva time with this. I've got the entire interior out of the car, so it should be easier, but here I am asking for help.

So, when I stripped my GAGT parts car a few years ago, I managed to get the HVAC module out in one piece by removing the "cross vehicle beam" or "tie bar", the metal support that the dash mounts to. Unfortunately, that's been a few years and I can't for the love of god remember how I got that beam off. I've followed the information that alldata offers. The passenger side is loose, but the drivers side won't budge. Any input appreciated.