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Old 06-12-2020, 10:41 AM   #7
Dead Parrot
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Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,809
Re: heater box vacumn can

Here is a pic of the one on my 75. It does have two hoses. IIRC - I have seen the one hose round ones on later trucks. Maybe they moved the check valve out of the tank?
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