RAM 3500 Truck 4WD V8-5.9L VIN 5 HDC (1999)
Housing Assembly HVAC: Specifications
Tighten the screws on the bottom of the heater-A/C housing that secure the two housing halves together to 2.2 Nm (20 in lbs).
Tighten the mounting screw that secures the floor duct onto the center heat duct adapter to 2.2 Nm (20 in lbs).