[Healeys] under dash insulation pad

[I Erbs]

found on page 31 Nocks hard to find parts.
May be a simple question but here goes.....
does this fit behind or above the heater assembly?
Hard to tell just by looking/ The heater is just not coming out. The screw
heads wii not release. have tried heat, anti-seize, hammer screw driver  and
brute force. Do not want to rip off screw heads.
Thanks, and Hi John, got your message

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I Erbs
Portland, OR
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