RAM 2500 Truck 4WD V8-5.7L VIN D (2005)
15. Remove the foam seal from the heater core tubes.
16. If equipped with the dual zone heating-A/C system, remove the linkage rod (4) to gain access to the heater core (3).
17. Remove the two screws (1) that secure the heater core tube bracket (2) to the HVAC housing and remove the bracket.
18. Carefully pull the heater core out of the front of the HVAC housing.
19. Inspect all heater core foam seals and replace as required.
20. Remove the screws (3) that secure the floor distribution duct (1) to the bottom of the HVAC housing (2).
21. Remove the floor distribution duct from the HVAC housing.