A ama187 New member Joined Dec 17, 2011 Messages 1 Reaction score 0 Points 0 Dec 17, 2011 #1 ON A 1998 GMC SIERRA WHICH ENGINE OIL COOLER LINES,THAT COME FROM THE IN AND OUT ON THE OIL COOLER ADAPTER,GO TO THE UPPER AND LOWER FITTINGS ON THE RADIATOR. THANKS
ON A 1998 GMC SIERRA WHICH ENGINE OIL COOLER LINES,THAT COME FROM THE IN AND OUT ON THE OIL COOLER ADAPTER,GO TO THE UPPER AND LOWER FITTINGS ON THE RADIATOR. THANKS
. THANKS