Sierra Classic 2500 2WD V8-6.6L DSL Turbo (2007)
7. Important: Maintain a 6 mm (0.25 inch) minimum clearance at all 3 places.
Center the engine cooling fan shroud to the fan blade in 3 places (1).
8. Fully tighten the 3 engine cooling fan shroud bolts (1).
Tighten the bolts to 8 Nm (71 inch lbs.).
9. Install the upper fan shroud.