Also, after stuffing about 4 feet long stripping of 2 x 2 inch dense insulating foam around the blower motor area behind the glove box, I still definitely get cold wafting out from the passenger footwell.
I am getting desperate now. Perhaps the next step is to pull the dash and see where this sucker is leaking from. It just seems silly that a truck of the caliber of a freaking Land Cruiser will fail on something basic like this!
With this issue, its basically unusable for roadtrips in midwest winter