Quote:
Originally Posted by ozoneblue
If I remember right its all done from under the hood.on a car with AC. Go to autozone.com under repair info you probably wont find Olds. so use Chevell , Once you get top cover off its easy.Watch for hidden screws under the glue
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An A-body doesn't have a "top cover" - that's a G-body thing. The heater core is in the box under the dash. You'll need to remove the pass. side fender, or at least the inner fender, to access all the fasteners on the firewall side of the heater box. As a word of advice, while you have the fender off replace the heater fan motor at the same time.