Great, thanx! Must have missed the earlier thread on this subject, thanx for the link Jim. Good thing it can be done without the fender comming off, big relief!
David, just as a reference before I start, seen from the inside, what did you remove, how many bolts keep the entire system in place on the dash side? Or are the bolts from the firewall the most important ones? Did you take off the "duct" first and then the "case" (as they are called in the parts index of Vikki's library)? Since the core is inside the "CASE", I wondered if it can't come off as one piece, but your pic shows the case apart.