Sierra 3500 Denali 2WD V8-6.0L (2011)
2. Install the sunroof window. Refer to Sunroof Window Replacement (Extended Cab) (See: Sunroof / Moonroof Panel/Service and Repair/Sunroof
Window Replacement (Extended Cab))Sunroof Window Replacement (Crew Cab) (See: Sunroof / Moonroof Panel/Service and Repair/Sunroof
Window Replacement (Crew Cab)).
3. Ensure that the sunroof does not have any air or waterleaks.