Silverado 3500 4WD V8-6.0L VIN U (2004)
1. Apply a 5 mm (0.20 inch) bead of sealant GM P/N 12378190, or equivalent 20 mm (0.80 inch) long to the oil pan to engine block junction.
2. Install the rear cover gasket and cover.
3. Install the rear cover bolts until snug. Do not overtighten.
4. Install the oil pan-to-rear cover bolts (1) until snug. Do not overtighten.
5. Rotate the crankshaft until two opposing flywheel bolt holes are parallel to the oil pan surface.
Important: The tapered legs of the alignment tool must enter the rear cover oil seal bore.
6. Install the J 41476 and bolts onto the rear of the crankshaft.
