Hello again, gents:

After 5 or 6 hours of labor (I lost count) core is out. And Bill, you were right. It is a lot more than removing 4 bolts: like hoses, cables, wiring and a gazillion screws. Thanks to you and the others that chimed in. Hopefully reassembly will be a bit easier since a/c will not be reconnected (freon long gone). I ordered shaping coils to provide for the 90 degree bends in the hoses. All in all its a big project!

John in Colorado