Silverado 2500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
8. Install the oil filter.
9. Install the upper oil pan.
10. Install a NEW gasket to the turbocharger oil return pipe.
11. Install the turbocharger oil return pipe to flywheel housing nuts.
Tighten the nuts to 21 Nm (15 ft. lbs.).
12. Install the crankshaft rear oil seal.
13. Fill the cooling system.