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Old 11-13-2016, 11:28 PM   #28
Airdirect
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Join Date: Oct 2016
Location: Powderly Texas
Posts: 290
Re: 1979 Chevrolet C70 Conversion to OEM Air Conditioning

Next, positioned the right end of the center duct in the upper portion of the dash. Then move it aside and install the defrost door housing. Before installation I replaced the door foam seal. When installing the defrost door housing, connect the passenger side defrost hose going between the defrost vent and the housing. Defrost housing slides under two clips on the heater housing and is fastened in place by a screw on the right side. Connect the vacuum line to the actuator and then install the right end of the center duct using two screws one on each side. The center duct is held in position by two metal tabs with screws through the dash frame.
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