Just passenger compartment items. Whats different? Only things I can think of are the actual blower speed and selector unit, vent on either side of dash and perhaps a mixing box under the dash??? Under hood will be a newer system. Owner just wants interior to function correctly and look stock. Thanks!
I have a '64 Electra and am installing A/C in mine to be fully functional. I bought a donor car and swapped everything over. In my case there is a big difference between just a heater and HVAC system so while I was doing my frame off resto I replaced a good part of the firewall to make it all fit well.
I found everything I need. If anyone else needs parts for a 65 Electra, the name of the place is French Lake Auto Parts in MN.