F 450 2WD Super Duty V10-6.8L VIN S (1999)
8. Remove the vapor management valve and bracket.
9. Disconnect the condenser to evaporator tube from the A/C evaporator core. See: Coupler HVAC/Service and Repair
10. Disconnect the heater hoses from the heater core. See: Heater Hose/Service and Repair
11. Disconnect the electrical connectors.