2008 6.6L Duramax – UPPER OIL PAN INSTALLATION
1. Apply a 2-3 mm wide by 0.5-1.5 mm bead o f GM P/N 12378521 (Canadian P/N 88901148) sealant to the upper oil pan mating surfaces. 2. Install the upper oil pan to the engine block. 4. Install the two flywheel housing to upper oil pan bolts. Tighten: Tighten the two flywheel housing… Read More »