Brought my 07 6.0l in for this guy to test the head gaskets and help me figure out why my truck was overheating w/ my family on the road. He called me 2 days later and tells me that FOR SURE the truck needed head gaskets. Although no white smoke. Head scratcher there. Took it over to Gellings for a second opinion, and they told me the headers and gaskets look GREAT, the trucks already had ARP studs and Sinister diesel gaskets. Turns out the Radiator is going Bad. Iam Having them put in a brand new Mishomoto radiator & Sinister diesel coolant filter kit. Matterns just has a shiny new shop
to pay for. Be careful over there. read more