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Re: heater box vacumn can
Quote:
Originally Posted by Dead Parrot
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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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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'51 South Bend Model "9A"
'56 Chevy 3600 NAPCO
'74 Chevy Cheyenne Super K20-restored on 37's
'72 GMC Sierra Custom K2500- in progress
'08 GMC Envoy Denali
'12 GMC Sierra 2500HD Denali
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