Silverado Classic 3500 4WD V8-6.6L DSL Turbo (2007)
2. Install the heater core cowl gasket (1) to the HVAC module assembly (2).
3. Install the heater core cover (1) to the HVAC module assembly (2).
Notice: Refer to Fastener Notice.
4. Install the screws to the heater core cover (1).
Tighten the screws to 2 N.m (18 lb in).
5. Install the HVAC module assembly.