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Old 06-12-2020, 02:46 PM   #8
MJN
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Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
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Re: heater box vacumn can

Quote:
Originally Posted by Dead Parrot View Post
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?
Mine is the same- front hose goes to the intake manifold port, rear hose goes into the firewall possibly to the heater controls or the cowl valve I can't remember which. Classic Industries sells reproduction vacuum tanks like the one mikentosh posted.
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