Thread: [1968] AC Firewall Question
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Old 07/29/2013, 02:34 PM   #4
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Location: Franklin, NC
Joined: Mar 07
Posts: 4,075

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Are you adding A/C? IIRC, the 4 holes in the firewall are meant to accomodate either configuration: with A/C or without. The 2 holes inboard/vertical are for the non A/C configuration (heater only). The 2 holes horizontal/adjacent to evaporator lines & expansion valve holes are for an A/C configuration.
As far as plugs for unused firewall holes i've used the rubber body plugs. Worked out fine.

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