Any idea what years of a-bodies would interchange? I'm thinking there might be differences in the firewall openings for the heater hoses, blower etc. on later cars. There aren't any a bodies around here (running or for parts) to eyeball except my Duster, but it has air. I'll have to find one online, but all I've found are listed for later models and none of the sellers can confirm fitment.
Thanks, Bob