C 2500 Yukon XL 2WD V8-8.1L VIN G (2002)
3. Install the auxiliary HVAC module lower cover.
4. Install the heater core pipe retainer and gasket.
5. Install the stud between the heater core inlet and outlet on the underside of the rear HVAC module.
6. Install the air temperature actuator (1) to the auxiliary HVAC module.