Filter boost pump? I checked and did not see what you are referring to. Plz share link?
166,000 at the moment. A shop guy told me the Arp Headstuds could be installed one at a time without removing the heads on a Duramax if it was lower miles. Is this something worth trying to save shop costs at my mileage? How do I tell if it has the newer style head gasket? Just by year?