Sierra 2500 4WD V8-6.6L DSL Turbo (2007)
7. Install the flywheel housing bolts, denoted by the black circles.
Tighten the bolts to 90 N.m (67 lb ft).
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 N.m (15 lb ft).
