November 20th, 2016, 08:28 PM
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Senior Member
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Join Date: Jan 2013
Location: Rohnert Park, ca.
Truck: 1968 KM2500
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Re: 1964 GMC "crustine" semi-build.
This is what is considered a breather cap with a breather tube for the air cleaner used on 68-74 V6 engines.
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